Looks nice! I don't like foam insulation. I prefer rigid and would even choose batt insulation over foam. Foam is too permanent for my liking. I like to have the option to take things apart again without too much work.There are up sides and down sides to every thing. I have built all types commonly used. A post and beam wrapped in metal is most certainly the cheapest route. However, if you skip getting quality metal that is less then 24 gage and lacks a quality Kynar finish, you'll just have expenses deferred down the road. If you foam insulate metal it is superior in r- value and insect and rodent resistant. It also adds ridgeddy to the structure. BIG however! Metal that is sprayed can't be removed or replaced without total destruction. Foam insulation adheres to the panel and makes removal extremely labor intensive.
Decide how big you need the space upstairs and the garage downstairs and I can recommend a layout.
This is a rendering I recently did for a potential client that wants an efficiency above horse stables, tack, feed and wash room.View attachment 1641927
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