All I know is if you do a professional restoration on a comic which would include pieces added, re-glossing et all, you would have a comic that although looks VF, you could expect to get VG overstreet guide (or if it's more current) whatever gocollect is currently saying a VG sells for. I've personally experienced this with a restored FF 1 I own, as I've been watching what similarly restored 1's go for. I'm thinking the best way to figure this out for yourself, is to simply watch what happens when an Amazing Spiderman 1 goes up for sale. Certainly there are other angles you need to consider, and maybe some other boarders can come up with their thoughts and experiences.