Try this place if your near KY,
https://wholesaledoorsupply.com/
Bought 2 10x10 insulated doors from them last year for around $1500, very nice people and were in stock.
I have a 30x40x12 Carolina Carport style garage and I skipped the bubble wrap and found a place selling 2 1/2 inch thick, 36 inch wide and 125ft long fiberglass insulation, I cut to fit between the posts and bought 10ft sheets of white metal to cover the whole inside of the garage. Turned out...
I looked at those but found Carolina Carports and had them build a 30x40x12 with 2 10x10 garage door openings and 2 window openings and a 36 man door. For $16,800 completely installed vertical roof also. Put in my own garage door because I wanted insulated overhead doors and put in my own double...