Parts to replace when changing engine?

hi forum,
im buying a used new engine to replace my 92 3-vze with a rodknock.
im planing to replace right away:
water and oilpump
timingbelt
head gasket
rear main seal
oil pan gasket
valvecover gasket

my question is: are there good gasketsets to make this easy and cheap, first good quality second price
any other parts you guys recommend changing while its out?
thank you