Not too sure what you mean bud, Owen did engine wiring and I did box, everything works perfect a/c t/c abs cruise control rev limiter, all dials, push button start not a single fault, only light on is as iv said engine management light due to not having a cat, as the second lambda is reading higher immitions than it would with a cat, light had been turned off but comes back on, iv got used to it by now anyway and mot tester been one of my good mates is a bonus....Cheers hope this helped , and regarding cost all depends on what and how you want stuff doing , but whilst engine etc is out its worth spending extra cash and rebuilding vital bits and cambelt of course There's not really a simple figure as I say