I sold mine recently but I have some pics of it here on flickr:

http://www.flickr.com/photos/super8man/4179893960/in/set-72157622974853980

I installed a pinball pro speaker...it was more than adequate.

I did some board work on it, caps and a new amplifier chip...it was good. I never got to the 40-pin connector though. I sold it for $500. I had basically mastered gameplay so it was losing favor with me...funny thing, I paid 700 for it and pumped about $200 into it...paying it forward you might say.

Cheers,
Mike

PS - be sure to do the old dual fuse install and replace the big blue cap. Look into the procedure online...it was on the pinball repair website for a time...there's a design flaw in the circuit regarding the bridge rectifier... Its a fire hazard and you don't want it to burn down...