I'm not bothered what make it is, but it must be in excellent condition, however I don't want a Motad

It can be chrome or black though black is preferred. If it's black and just needs painting no worries but I don't want anything heavily pitted.
I would also consider just a decent 4-1 header system (without silencer) as I could then probably graft my Kerker silencer onto it.

I have a budget of £200 to play with.
Thanks, Will
PS. I have a 4-1 Kerker to trade with, which has a dent in a couple of the downpipes and has heavy scrape marks through cornering. The downpipes are also pitted and the silencer has a scrape on one side.