I think I'm closing in on $40k, 25 x 40 shop, 3 pour pad foundation 6" slab, rebar 16" oc, curing sealer was used. 2x6 stick frame, vinyl siding/metal trim, used plywood instead of osb, 6:12 roof trusses, architectural shingles w metal valleys & gutters, 9pc 4' x 5' Andersen 400 series windows, 9' x 8' garage door Haas 2" insulated, 2 fberglass man doors. Inside, Roxul, electrical includes 120v NM and 240v 3ph wiring in conduit, enet, security prewire, smoke prewire, Cu shop air piping in-wall, a tilting staircase, 9" of cellulose, insulated 2-zone ductwork in attic and walls back to existing forced air furnace, Type C drywall. All DIY except finishing the concrete slab, its taken a long time but I tried to use the best materials within reason. The windows were expensive but I really love the interior light. Mr Cool is still planned for future as is some exterior flatwork.