I know what you mean:)
If I were to build one, I would have the following:
-Hardwood floor cement is hard on my soles standing for long time
-subpanel with enough electricity (220 /110)
A lot of light
-A sepearate mini shed for the dust collector adjacent to the building
-build out the main dust collector to 6" ( preferable metal) and reducer where you need them. Of course blast gates as needed. Grounded of course
-Lot’s of storage so stuff don’t pile up on each other
-If you do a lot of work mabye an isolated space for finishing
-Since you mention snow, don’t forget the heating
Good luck with your build and please post as you so we learn as well:)
Abbas, Castro Valley, CA