the question asked was in general, well thats how ive read it.
i dont brake cars for a living but done 4-5 rs turbos and thats how much you make from my experiance.
if you get idiots with money burning a hole in your pocket your quids in, most rs turbo enthuaists know what things are worth.
anything mint/as new fetchs big bucks, anything used damaged imo is really worthless to a degree.
any bling,engine,performance mods,aluminuim rads,intercoolers etc expect to get 50%-75% back on what you payed for it...
good luck if you do brake it but dont get disheartened when you get left with a bundle of parts that you want to get rid of...