I'd pay to see that. I've long said (probably somewhere here in this thread) that I wish Kiss would do the "Iron Maiden" thing, and do a tour of recent stuff, and a tour of a certain era of the band. Kiss sort of did that for a while (the first reunion was essentially the Love Gun tour/set, and they've touched on the Destroyer era set/costumes) but I wouldn't mind expanding that. The problem is, they've NEVER been a real "rarities" band, even if they did drop some of those obscure Rock and Roll Over songs in for a show or two.
For me, a diehard, I'd love to see a whole set of songs from '74 to '80, and not have ONE song from Alive!, Alive II, or Double Platinum. I think it would just be me, Coz, Eddie Trunk, and Sophie in the audience though.