Hey Jason,
Use the search function mate, as well as read all the stickys at the top of the RB forum, all your Q's will be answered plus many more you havnt thought of yet
I am using the CM Rod shop mounts, you will still need a rear sump oil pan (the stock RB25 one is front) Many of us here buy a new sump from Nissan from a JDM only Z31 300zx with a RB20 in it, which has rear sump, which will bolt on and work on RB25 and RB30. This sump can then be modified to increase oil capcity and baffles etc.
The part numbers of the new sump and oil pickup are else where on this forum - check the RB stickys.