Did you also need to replace the access cover gasket?
No, the 4 I built were still good.
The pair I bought only had one width of w/s all the way around....I always do two, so I added another width all the way around.
The sad thing I found was that the two I bought (from a really nice guy who had them made by an authorized builder - who is no longer around) had some build issues. The driver compartment was filthy. Sawdust and crap all over. On both of them the middle screw on the access cover was broken off - when I backed it out there was only half a screw. The problem was that they centered the screw right in the middle and it was hitting the driver frame - but they didn't even fix it. You know when you spin a screw...no excuse for that.
The other issue was the finish - the duratex comes off of these two too easily. My other four have been around longer and had more abuse and look better than these two. I guess I'll have to do some painting after this year's shows are over.
Oh well, enough complaining.....
Check your drivers if they've been in there a couple of years.