If you sell in Spring, you'll get about £3650 for her (with all the bits!) If you strip her down & re-standardise her then you'll get about £3400, but then you can gain more cash selling off the bits either through eBay or on here
When the time comes, I'll strip mine down & return her to near standard (I cut the undertray to fit Powerbronze one

) & sell parts for more dosh