Fat Bikes / Fatbikes

Was I the last person to ask a question on here? Well here I am again.

The Finnish winter encroaches. I want to buy a fatbike. My criteria am:

1. Can take at least 4.8" tyres. 5" even better.
   
2. Doesn't need to actually be designed for proper offroad at all. Just dense snow on cycle tracks.
   
3. Don't need suspension.
   
4. Dont need a huge gear range.
   
5. Would like something that is light.
   
6. Maybe electric, I dunno. Ended up renting an electric fatbike last winter and it was fun. But that bike retailed for €4k.