Its based off the Mato / Torro chassis and front end. I had to shift the drive axle rearwards a little and extend the drive shaft, but easy enough if you buy an M2 drill and tap tool set (or 4 or 5, because you will break a lot of drill bits and tap tools in the process ) and some appropriate inner diameter brass tube to extend the drive shaft.

The rear end was built off George "F**king" Bradford's 'cartoons', and is about 10 mm too long past the rear axle compared with the real thing...

(Thanks George, for taking my money and leaving me too long with your crappy plans...)

That crooked star and wavy serial number - I take full responsibility for - looked good until I saw the pictures