Wow I just checked my Topcats and they appear to be in good shape. They are so nice, I think you should use em. I had PUI ones for my 71 build that I did in 05 and they sucked so bad I did what you said and reused my originals which luckly were in nice shape. Since then I bought these Topcats and they are much nicer.

For the quarter seal I used seals from Metro. They have been on my car since 05 and are holding up nicely. I have two sets still new, both are for my 74s. My driver 74 was inside alot in it's life and they are still in good shape, so these are for "stock" lol