Best of luck and enjoy the process Marty - you'll be loving this game when it's done, one of the fav's in my collection. If you need anything post or PM, I have some spares of some odds and sods (plastics mainly). I did an IPB playfield swap and am sure glad I did - speeds up the ball travel over the standard mylared field quite a bit, and the game plays so much better.
And you might want to consider Pinnies4me Funhouse Ramp Anti-jump Condom (C) TM Patent (not) Pending -
http://aussiepinball.com/index.php?topic=103.0I will also rebuild all 4 flipper assemblies,
Looks like you got the special special proto - my poor game only has three flippers.. .. ..