Given the likely sale price of a 5th gen (ask how I know, I bought one in February), I’m going to guess it’s not worth the time to revert to stock.
BUT, it will make a difference to buyers that you have all the stock parts, so they can configure the bike as they see fit.
Definitely mention the lowering mods too, as for some buyers, that will be a very valuable feature. IF you are so inclined, you could offer in the ad (or as a deal closer) to deliver the bike with the buyer’s choice of parts installed, but again, probably not necessary.
The big thing is, you won’t know what your prospective buyer wants. Some people will be looking only for powered bikes, some won’t care, some will like the aftermarket exhaust; when I was looking for bikes, I wanted the STOCK exhaust (loud pipes may save lives, but quiet pipes save tickets, relationships, your hearing, riding fatigue... 😉)