Personally I would split out the fairings from the lights etc and list items separately. Listing everything as a job lot is narrowing your market considerably.
You can get custom painted street fairings for ?500 and although yours are oe fairings (and arguably better quality than aftermarket ones) you need to bear that in mind with your price.
Stock exhaust isn't worth much resale because anyone who has changed their stock to something else nearly always keeps the original to go back on if they sell the bike.
Original rear shock, no idea on price but probably the same as above.
Lights and mirrors etc worthwhile checking out the new price for them and maybe listing each individually on ebay for something much less in the hope someone needs one or two at some point.
Or wait around for someone on here needing a few bits following an off, but you might have to wait a long time.
Personally if I was converting my bike to track only I would probably keep all the stuff you are wanting to sell and put it back on the bike when you are done with it. Of course if you are planning to never sell and never use it on road ever again its obviously not an option.
I hope that gives you some guidance?
