here's my new JD club member update:
auto-plunger is fixed. wrong sleeve was installed. plunger was scraping on the middle bracket.
eagle is mounted. got the hardware list off marco here: http://www.marcospecialties.com/pinball-parts/A-17468.
removed deadworld mod. definitely less cool now, but want a working baseline while i fix everything else.
still need help with my weak left flipper, however. hardware looks like a rebuild. everything has the correct play to it. correctly spaced off my bushing. i cleaned the button optos.
i tested resistance over the coil. i got ~121 left and ~126 on the right side. would that make a difference? it's the correct coil #, doesn't have a williams label on it though. really, if i can get this fixed, i'll have a nice little JD on my hands.