timing belt

Having trouble getting a list of genuine toyota/lexus parts numbers for all bits required to change water pump and camshaft belt on my 1UZFE which came out of a 1989 Celsior (eng # 1UZ0010489) now fitted to a 1956 F100, and where the best place to purchase parts.

soo....I got a job delivering pizza (right when gas goes up...) :mad:...and I get the CEL on. Well its cylinder #3....figured it was a easy fix...hahahahaha In the end its the head gasket...(geting coolent on the spark plug) but here are the questions, if you guys would help a 18 year old out...