Need Quick Garage Cost Info ASAP !!

I’m in the process of building a shop myself. It’s a 40x60x16 with 14x60 lean-to’s on both sides. 54x60x5” concrete pad with in-floor heat. So far I’m right at $50k and I haven’t ordered my roof metal or garage doors and I’ll need a little more lumber yet. My goal is to have the exterior, insulation and electrical all done for under $70k, hopefully have the interior mostly finished out (minus the boiler system for the floor heat) for another $5-10k. So far I’ve done all the work myself though, other than the concrete.