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