So,
THAT'S why all the NOS parts have been disappearing on Fleabay...

Yeah, it was coming to mind that the bodywork would be some of the most expensive by labor-hour, yet, would pay dividends on the final product. I assume the rest of the suspension and steering components would essentially be a Stroppe, but I'm not familiar enough with the Balloon Chasers to know what else would be identifiably unique to them.