I got the IIci logic board back from Uniserver today, and now it boots right up with no problem. Sound works too. Woohoo! 

Apple really should have put longer-lasting capacitors in their machines. Didn't they know us nerds would still be using them 25 years later? I wonder how today's electronics will fare in 2039:

!! RARE IPHONE 6 @@ TIM COOK @@ - $18,999 !!

Needs new battery. Seems to require some kind of pre-cranial-implant "touch" interface.