Price reduced! C85 custom-built drone with stripped GoPro 10

This is a Cinecho 85 that was custom-built for me two years ago.
I flew it a few times in my company's warehouse, so there are some dirt and scratches on the propellers.
The frame is clean with no warping or other issues.
I flew it with a T16IZ.
I always left repairs and settings to the shop, so I'm not knowledgeable about the specifics.
I would appreciate it if someone with expertise or an understanding of DIY drones could take it.