This looks interesting, a direct import from China:
https://www.ebay.co.uk/itm/New-Fairi...rk:12:razz:f:0
It would be a gamble on the quality, and it might attract some import duty (sometimes direct impots do, sometimes they don't - maybe another £60), but a whole set of plastics for £300ish is a marvellous deal. It says in the rubric that the set can come in any colour - which would save the need to re-paint the tank.
This kit would be a good solution for a late model (maybe >2010) insurance write off that was mechanically good but had some road rash on the plastics. I'm tempted to look around for one as my next project.
Alan