Phew!!! that's quite the building Ayoub. What was it originally built for?
I just priced a Good-On 30x60x12'6 wood frame-tin strapped building, 12' roll up, 2 walk ins & 7 slider windows to build this summer for $30 500... add on spray insulation, electrical, cement for 30x40, heat, 2 partion walls, ect.. it'll be another 30+ before it's done.

I'm looking forward to a much better workshop for the next 30yrs.