hopefully i will be picking up a 360 next sat( swaping it for my bmw 520

for the engine to fit( i know the turbo to engine mount clearance is tight) i need to swap the sump and pick up from the b200, i have seen talk of swaping the water pump but not sure why( clearance problem?)
next problem is the wireing, can i just strip the loom on the donor car and swap it over, i'd like to use the stock loom and once the car is running swap to ms later or would it be easyer to start off going down the ms route
i plan to use it as a drift toy and for a bit of drag racing , i know that the gearbox/ prop is a weak link what box can/ has been swaped before, theres not much point using the std 700 series box there about as bad, the prop is simple to sort i know
the last thing is to do with swaping the flywheel/clutch/presure plate. am i right in thinking its the 360 fly clutch and pp on the the engine?
cheers for your help, i'll post pics of the car and how things go when i get the car

chris