Hey Michael, I used AIR for my fenders. The fit is OK for fiberglass. They don't fit great around where they meet the cowl but for what you want to do it should be fine. I had to drill all the mounting holes for attachment and also used the headlight attachment parts off of the old fenders. Used a lot of rivets for that. They look great from anything over 20 feet!!
I forgot what I paid for them. They are plenty sturdy. Also the fuel cover is a bit of a pain getting the latch setuypt to work. Lots of adjusting. I think there is a picture of them in your project 69 car. Mine is a 69 also. BTW your car is coming along GREAT
