Attached shop: convert for Airbnb?

[Account Closed]

I'm looking into buying as owner-occupied, and there is this metal frame house with an attached, insulated shop, like what a mechanic would use. It is big but has no internal walls. It's just a big shop space attached but separate to the main house. All I see is potential for an Airbnb, essentially adding the interior rooms, walls, etc. and call it a cottage or something. The house also has an unfinished attic which supposedly could be used as living space too, but the main potential is in the shop.

If I could get the remodel costs into the FHA loan (I forget the name of the loan that allows this), is this something you would do?