Thanks for all the info. Much appreciated.
The dream is for 8 throttle bodies and extractors.
Castlemain Rod Shop will do bell housings for W58 for about $400 if I remember correctly or $1000 for the lot, but I am fortunate enough to have access to enough equipment to make my own flywheel.
5 stud bolt pattern sounds good, thanks for the link.
Now all I need is time and money.
Any Ideas on who has front sump 1UZ's going cheap.