theres plenty of info out there mate, most of it is on toymods i believe.
first you need to decide which engine you are using as your donor, i believe some have better bolt allocations for the rwd mounts.
Then you need to decide how you are going to do inlet, custom, cut and shut, etc.
If you get the right block, i believe its 2s mounts that are a good start but need modifying, nothing too hard. Im pretty sure the big advantage to the beams stuff is the dli setup meaning no dissy. Outside that i think you can source the bottom sump section to get the engine on the right lean and having a sump that works.
I think its the 2s bellhousing to mate to w series box's.
thats all i got right now mate