Bought this for the wife because she wanted to learn (I'm cool with that). Does what it's supposed to do but is now powered by a Predator engine. I like to have IPL's and manuals for my toys and this one is no different. The only one I can find is for a 593-00, but this one looks a little different. Were most all the parts the same over the life of the Thunderbird? Any idea where I can find the model number (or has it been painted over)? Would like to try and find the correct literature if possible. Thanks y'all.