I don't think it is all that much different, your 4 speed, compared to the 722.6 5 speed. If you hit a dealers parts department you can chk the diagrams for an idea on what parts you need and even compare to a 722.6.
Another forum you may like is
www.club202.com
have you checked out STARTEK or STARTUNED MAGAZINE online? do a google search for both.