Is that 7K a trade-in value or retail? If KBB says 7K for excellent cond., you gotta figure around 25 - 35% less for fair depending (on time of year and local market as stated above). However, pictures of the scuffs / damage in this thread could help us out, but it's no substitute for real life. If it's ever been laid down or even driveway tipped, figure half of your adjusted number. Also, in my experience no one wants to pay for aftermarket parts, ESPECIALLY a dealer. Unless you get someone who wants the exact upgrades you already have, it won't be a selling point to them. I'd still market the bike as upgraded because they might be interested in them and pretend they're not. But if you get the extra 2K for the aftermarkets I'll be impressed.