guys, give mira a break.. its a nice car, 199k is yes a bit steep nonetheless.. 100k worth of mods, personally i'd give 50k.. 8pot brakes definitely a big bulk of it, minor touch up will go 10-15k additional, if u changed ur rims (but u also did trade in) - hence it will probably all add up to ~50k..
anyways, its a realll sweet ride, if the buyer really likes it then by all means 22k is super low mileage and checking the undercarriage for potential 'history', driveability & turbo, checkin the vin plate and etc will add up to whether is this a really value offer or would there be better prices elsewhere..
so Mira, be confident if your ride is really what you have portrayed, otherwise current mkt price is abt 180k... Good Luck.