atpturbo has most of the parts for any turbo install. you need a t25 manifold gasket, and likely a t25 5 bolt exhaust downpipe gasket. most of the oil and coolant lines should work without modification.
i personally dont know what mods will need to be done to the bracket, probably shimming of some sort but this is a good opportunity to replace the waste gate actuator as well with the atp one.
clocking the turbo just means taking off the compressor housing and pointing it a different way.. many people point it down and route their fmic to suit.