umm if i remember right i think 85mining goes for like 35-45m, it being lvl 3 with full prospectors, and upstairs and shit unlocked id say maybe get blast mining unlocked (from lovej favor) and maybe u can get 50-55m depending on the buyer. thats just my opinion cuz i like miners, and having everything unlocked and starting at 85 mining saves a fuckload of time. my pc is prolly on the high end hope it helped a lil