is this gonna be a pain in the butt
 

ok so my mechanis has a b18c that he wants to sell for 1000. i would still need to buy a distributor cap an auto tranny(ls) axles, motor mounts and an ecu. what im wondering is where do i find an ls tranny. also is it possible to get a obd1 to obd2 ecu. cuz i own a 98 civic ex and i still need to worry about emissions in my state. what do you think the total is gonna add up to for the parts? thanks