In my trawl of ebay for fairing bits I've seen all manner of project bike inflated prices, reasonably priced (in comparison) RS's and RT's, One very speculative R80 mono roadster at £4k! and an ex James May celebrity prices 100GS at £10k... without panniers.... Weird, Weird times...
https://www.ebay.co.uk/itm/1991-BMW...845641?hash=item1eda248649:g:FbQAAOSwCoBaiHw9
https://www.ebay.co.uk/itm/1991-BMW...845641?hash=item1eda248649:g:FbQAAOSwCoBaiHw9