if you're going to piece it together, you'll need a cooler (IIRC all of the 2V OEM mount the same), valve cover w/the threaded extensions to fit the cooler, lines, and that bypass valve thing that mounts inline between the engine and your oil filter.
DP sells kits, which save you alot of legwork, but is pricey. the install itself is quite easy
I did the same for my 620