I tried to get parts for one a few years back. Despite being the model that made Quadzilla's name in the UK, the importer seemed to have little interest in what they sell, once they have sold it. Engine parts should be fairly easy Honda 250 Nighthawk clone, I suspect some Chinese motorcycles will still be made with it now.

 

Do you roughly no what year model the quad may be trying to get plastics and a seat for it

 

The one I worked on had Yamaha Raptor style plastics, those look more like a Kawasaki 220 or Yamaha Timberwoolf. Chinese makers don't usually go in for selling spares anyway, certainly not after they stop making the model. The Nighthawk engine was used by Quadzilla for a few years around 2005. If you can find a VIN you can get the year and possibly confirmation of maker.

Unless it is a seat common to many Chinese bikes, get it re-upholstered. We get seats for Hondas/Suzukis and Yams done by a local furniture re-upholsterer, it is a bit cheaper than new replacements for Hondas and way cheaper than Suzuki seats.