Great build! We have a Thunderbolt too and I just put the clone on. I have the link to the Comet clones on eBay, but I'm not sure what the center distance is on those and am hesitant to order. Can you recommend a clutch/torque converter set up? I need jackshaft as well.
I also have the original tank. Did you just soak it in vinegar for a few days then coat the interior? Did you have to do anything custom to connect the tank to the predator? Thanks much!