Notice Florida uses all block but no northern states.
Any near Indiana build a block? If so what was your cost?
Thinking I can do a 24x30 under 5k then I'll do the roof and stucco
As a mason contractor, I think your cost estimate is WAY low unless of course you plan to lay the block yourself. There are additional cost as well, as you'll need a full frost wall/footing below grade, rebar for pilasters, anchor bolts, grout, etc....
Naturally, my shop is block, 30' x 70' with a 10' x 30' bump-out. Total of 18 courses high with a cathedral ceiling. I left the interior unfinished (just painted) because nothing takes the abuse like it IMO. The exterior I furred out with 2x2's, insulated with 1.5" foam between it, and put 1/2" foil faced foam over the top with taped seams. Mounted tile backer board over that and did a masonry stucco/plaster finish over it. Doesn't heat the greatest, but most of your loss is through the ceiling anyways, so insulate the ceiling as well as you can afford........