PM me an email address Stephen and I'll send you the photos I have ( not many) of Dave Watson's 24 valve into S chassis conversion. He made a removable rear frame for the engine cradle. Not too onerous if you can do basic fabrication.
The Corse pdf manual was uploaded by Tom McClintock in the states I believe.
It's not brilliant but better than nothing.
This is the place to ask questions as the fount of knowledge here is almost unlimited.
As regards bolt tensile strengths I think if you use 10.9 cap heads for everything you possibly can then you can't go far wrong. Especially for suspension applications I would buy the bolts " over long" and cut them down to the length required. I maintain that for suspension no portion of the bolt in shear should be threaded, so you need to buy longer bolts with a longer portion of smooth shank.
Others may think I'm being a bit finnicky!