There is a thread in the Fox forum on customizing the smoked tails and US Fox I trays that was started by Hansel2 - it wasn't so bad at all. I used silicone around all the seams to play it safe. I think they look great.
Otherwise I have a pair if you want to stay stock - no cracks or leaks. Are the Cofran new? I'd maybe figure out a trade type situation to have back-ups.