Just got this and bookmarked it.One thing I found towards the bottom was a choice of gear ratios to solve the drop of rpms from first to second.Plenty of diagrams and the outside dimensions which could be helpful.A long read,but a good one.Take a peek:

700 Raptor 700R4 700R4 Transmission 700r4 700R4 700r4 PATC 700R4 700r4 700r4 700r4 700r4 700r4 700r4 700r4 700r4