So pretty much a loom from a wrecked bike would be maybe the easiest transplant. But you still have given no details of what you are after or where you live.
So I'm going to use my psychic powers to guess. You have an early prototype FSE400 foulstroke, and you live in India.
Ahh, well, I think Rajeevs House of GasGas were wrecking one of those. No problem, thank me later.