In addition to a dio of a couple guys pulling the engine from a Shelby GT350H and transplanting the regular 289 from their Mustang before returning it (something that did happen), I've also thought about a dio of a couple guys building a roll cage and bolting it into their rent-a-racer (something that also happened).
Would sprues be the right scale you think? 1:24 scale.
Or do I need to find some plastic model pipe?