The Bull looks nice. The one that will fit is basically the same as what I have, the replacement cost is around $4K, like the BBQs Galore Grand Turbo.
Anyway, I'm committed to the project. I've got new burners, new temp gauge, new spark igniters, new knobs, and new ceramic briquettes on the way. I've inspected the valves and it looks like I'll only need to replace one of them. The back burner rail is in okay condition, but the back crossover tubes are pretty much toast. I can't find anywhere that carries them so it looks like I'm going to have to get those fabricated, luckily my next door neighbor is a kick-ass dude who manages the shop floor at a metal fabrication company and can hook me up with those for nothing more than a case of beer.
Current estimate of parts is around $550.
Of course, this whole thing could end up taking me 80 man-hours and $10,000 to complete. Either way I plan to post up pics so y'all can watch the hilarity unfold.