Hi jmc and you other guys! Thank you for taking your time to write such a helpful replies!
I will try to narrow some things down. Really appreciate your time.
CHOICE OF CANOE
Our initially thoughts on choice of canoe where to buy a canoe on the spot or buying one online and ship it to our starting place/city. Like a “normal” canoe, not and Ally og PakCanoe. Then use it for our trip and try to sell it after the trip is done. The reason for this is that we are afraid to rip these foldable canoes, since we might not have much experience. We simply think that these regular canoes (made of polyethylene or royalex) are more durable. But we might be wrong. So we are reconsindering this - and are also open for suggestions.
FLY-IN
We are hoping to make the trip without a fly-in. But we are not completely saying no. If what we get out of it is worth the money (say a much better trip), we would consider it. But it is about money so far. If a nice trip can be planned without this cost, we are going for this. So we are mostly trying to avoid a fly-in and save the money.
STARTING DATE
As early as possible. But if options are better for a mid-june start, this is what we will do. So for the sake of narrowing down, let’s say we want to start in the middle of June and spend two months out there - and then be back in Denmark at the end of August latest. So mid-june to mid-august “out there” and then some time to get back.
LOOP OR POINT-TO-POINT
Here we have no preference. Only thing is, as you say jmc, that we end up in a place where we can either drive out or fly out. And maybe sell our canoe for a bear-skin
PASSING BY PLACES WITH POSSIBILITY TO RESUPPLY
This is something that we really think will be helpful to us. So this is kind of a thing that we are striving to plan for. To pass by places from time to time (does not have to be many places) so we can resupply easily. Both for the experience and for the convenience of not bringing everything we need at the beginning.
One question for this - is it possible to rely on buying what we need on the spot in these small communities /cities? Like food or other things or do we have to plan ahead and pre-ship/plan what we need at specific points?
DON'T FEEL OBLIGED TO SEE ANY SPECIFIC RIVER - not even snowdrift

For us it is enough to just do things in the same vast area as some of our heroes. Helge Ingstad, Lars Monsen and others. I am half Norwegian, so of course I know about this. But we just want the best possible route that suits our needs.
When I write we don't just want to follow one big river it is because we also want some of the challenging parts like portageing and other stuff. We are open to following, say McKenzie River for a long part - but not only this river. I’ve recently read a book by a Danish adventurist, who followed only the McKenzie river. To me it was not as interesting as some other books I've read. But for sure, yes, following one river for a long period of time is alright, like you say, from Great Bear River and down.
NATURE/COUNTRY
In general a mix of everything. Nothing specific. But some scenery changes during the trip would be nice. Maybe not only tundra. We are both fond of the forest. When it comes to fishing, this is pretty important to us. But we also have the feeling that whereever we go, fishing would not be too bad - at least not for the entire trip. But fishing is quite important to us. We want to live as much of the land as we can.
My friend is also a hunter. But we didn't check the rules for this yet - and it is not a priority for us. But if possible, he would like to shoot birds once in a while.
Really good advice!!!
We will look at the options you mentioned jmc, and try to make it more specific for ourselves.
“From Slave River (which might be more conveniently reached from Ft. Smith NWT) the traditional route eastward went up Dog River to Leland Lakes - Star Lake - Tourangeau Lake - Tazin River upstream - turn north through Thekulthili Lake and River - Nonacho Lake, then east up the Taltson. From here there are many options.”
“I would suggest a start up the Emile River from Behchoko. From the Emile's headwaters around Mesa and Grenville Lakes, many options are available, looping back southward or continuing to the Coppermine area.”
This is really helpful. To get a route down in points and bits. Thank you!
We just ordered a big scale paper map for the area. Hopefully this can help is narrow it down together with satellite photos. We both struggle with only seeing it on screen.
So we will look and take you advice or narrowing things down the following period of time. And then maybe ask some follow-up questions later on.
But if you/you guys have anything to add already now, after I tried to be more specific, we would really appreciate it.
Thank you for the advice so far

Best Regards,
Fredrik and Jesper