How much is my custom build worth?

Hoping to sell this locally. It's a 'leftover's' build, made from various components I've recycled from the past few gens. Strong CPU and RAM, weak GPU. All in excellent shape, benchmarked & stability tested.

• Intel Core i9-10900KF
• ASUS ROG MAXIMUS XII FORMULA Z490
• 64GB (4 x 16) Trident Z Neo DDR4-3600
• GeForce GTX 1080 8GB
• Samsung NVMe SSD 980 PRO 2TB C:/
• Samsung NVMe SSD 970 EVO 1TB D:/
• Corsair H100i AIO Cooler
• Seagate SF1250 PSU
• Steel/tempered glass case with additional case fans installed.