The power to weight ratio would be the killer here. I doubt it could be legally registered without an engineers certificate & significant upgrades in brakes & suspension. It's got a leaf spring front end. Most states don't seem to allow more than an A14 in them without an engineers certificate. A friend has one in a shed & has plans to put an A15 into it, but I reckon a good torquey A14 would be just as much fun & far simpler to make both legal & safe. I mean they only weight 600 kg's on the rego papers, how much power to you need to make one go quick. Not much.