End of the day man if it aligns up well and is a solid chassis its worth good money; intriguing as this situation is it shouldnt affect your sale. I once bought a Pug 309 which had nothing on the V5, when I then recieved my copy of the V5 it said it had been declared Cat C a day after I bought it lol. Made no sense and DVLA had no answer for it, I just sold it on when I was done with it and the buyer didnt seem to care either. Completely different market I know but yeah, weird things happen with Cat Cs and whatnot I guess.