looks like a good starting point, but you've got your work cut out for sure!
you'll get better responses if you park the questions in the appropriate forum, most folks watch where they have the most interest or expertise ... you'll find that "pvc" modification you have recently discussed - in the engine/driveline forum I think - not clear where the other end of the hose from the valve cover connects, but you might want to consider replacing the correct road draft tube setup
Bill