Assemble cylinder down to cases with NO gasket, seal with anaerobic sealant like Loc-tite.
As to the second link, go into the MGB engine section and back @ 3-4 pages is a thread named:
Full circle crank and other tricks
You WILL NOT FIND any thing on line as comprehensive a HOW-TOO as what you have before you.
Find a way to print it out !! it will be your guide.
If seeking more info on the same subject ? Sign up for membership on Jims RC Boat Dock and read the original thread with all the discussions made on said subject.
That thread is here: www.jrcbd.com/showthread.php?t=766
Regards,
Scott