oh that was certainly taken into consideration. i know what machine work costs and it's not cheap. however, if you're selling something used like a motor or transmission labor actions such as that are sunk costs. "rebuilt" will add to the appeal and may bump the price up but you're not getting full book back on stuff like that.
the intake and exhaust are the real diamond in the goat's *** here and people are still having a hard time moving complete /6 setups.
if i was in the market or knew one of my clients would want something like this down the line i'd probably jump on it. but at that price point it's too much of a gamble for not enough ROI. but if you had a roller and wanted a hot slant setup this would be the jam and one hell of a deal.