you could also go my route for the feed line and still tap into the same port right by the oil filter, but you would purchase the fitting from
http://www.tunertoys.com
The fitting comes in two styles. One with two 1/8 NPT ports and the other with only 1 1/8 NPT port. They both have a 1/8 BSPT port for your factory oil pressure sender switch and i can vouch for there excellent customer service. The fitting costs about 20 bux and it is not made of brass.
Wild maxx's route is also good too so its really up to you as to which way you want to do it.......
For the oil return line, I went by Ivan's (Ivanatspracing) measurements for where to tap the oil pan so if you just run a search on oil pan, you should find it.