Could be that he doesn't understand the Guzzi "character" of sounds and might be fine. If it was mainly a cosmetic resto than the common stuff with old age will need to be addressed over time. If someone doesn't mind replacing aged items then the mods done will suit them well. It's tough getting a bike that "looks" this good, but I wouldn't expect it won't have issues down the road. Old Guzzi's are projects. Depending on a little luck and TLC some can be mitigated. From his end, probably not smart to lose his shirt doing a full on cosmetic resto then selling. Will be tough to get $6k I'd think. If you're going to put big $$ into these things you better keep them.