if you have a junk early A you could pratice the hole you are going to cut for the fender well headers,,in past experience the instructions always tell you to cut a hole way bigger then you need,, if useing full fender well headers you will probably have to cut real close to the shock tower,,i would brace that area underneith,, ive seen several upper shock mouts and upper control arm mounts come out of position or just cave in after the inner fender sheet metal has been removed for headers,,,just my 2 cents,,,,cant wait to see it,,