Yup, it's pretty cool. I can't say I own that particular one(it is owned by someone who raced a Ralph Muldoon framed dragster back in the early/mid 70s, and was a BIG regular customer of RC Engineering), but I have seen it in person along with several others and carefully photographed them with measurements to allow for reproducing it/them in the future potentially. Lots of up front cost and effort to do it right. Hard to justify for limited batches. The original logo RC shirts were a priority to do at the time as a fundraiser for the RC Legacy cause. Screw the initial cost on those...
I tent to hunt down original hipo sohc4 related items. Some call it hoarding....
George