Help! Garage Door Rehab Question

[Mackenzie Grate]

I'm in the middle of a renovation and garage doors are backed up for MONTHS... literally, 8 months minimum they said. I was fortunate to find a lightly used garage door nearby. The homeowner was upgrading, and looking to hand off her older ones. There is only one small problem, her door is a slightly different size than mine. My garage door measures 8' wide x 7' tall and hers measures 9’ wide x 8’ tall. Is there any way to cut it down? Or get different tracks? Doors are expensive so I'd really like to figure this out, save some money and save that other perfectly good door from going into a landfill. Any one have experience with this or know someone who I could reach out to that does?

TIA! I appreciate your help!