83 XJ-750 Maxim parts available

I have some bits from my '83 parts bike that I'll never need/use on my '82, and would like to trade for a right-hand muffler and the lower plastic cover for the instrument pod.

Or cash...

Here are some of the parts I have:

complete '83 round instrument cluster in excellent shape EDIT: I'm not sure of the vintage of this instrument cluster. It's a mechanical tach)
seat (needs recovering, but in otherwise good condition)
front brake calipers (the master cylinder has a nasty scrape on one corner, and leaks from the sight glass, but despite this the brakes work, so the calipers are probably OK)
left-hand side cover (PO lost the right)

I might be willing to part with the carbs, which are currently off the bike, and have been cleaned.

I'll look at other parts, and provide pics, on request

Thanks, friends.