They don't look good to me. I have been a Kiss collector for over 35 years and have hundreds of autographs, a lot in person. The Gene and Paul are definitely not right,so I would leave it alone!
I'm not an expert and I don't have any Kiss autographs from 2000, but these look off from all the ones I've gotten in person over the last 4 years. Might be worth paying Roger for his expert opinion if you're thinking of buying it. I'd stay away from it unless you get his blessing.