I wasn't sure if the stock cap just twisted half way or not. Good info to know (I guess I should go look for myself under the hood instead of asking the internet). Anyhow, what about the oil filter? I guess you just have to disconnect the hose when you change the oil.
They don't make a complete 'kit,' but they have all of the parts to make installation very simple. Check this page out for the complete list of parts you need -
AMSOIL - By-pass Oil Filter Mounting Kits
Scroll down until you come to the blue box. There is a picture of the anodized filter caps on the right. It lists out the part numbers needed for Ford, Dodge, and GM.
Depending on where you mount the filter, you may need more hose. If you mount it to the alternator bracket like some folks have, you will have plenty of hose. If you mount it to the frame, you will need more.