I have a Philips VP932 without laser and power supply, and a fully working VP835. Please see my blog:
http://slowcade.blogspot.com/2009/07/dragons-lair-laser-disc-players.html
Is there any way to combine parts from these two, so that I can have a fully working laser disc player without using the EuroDL interface?
I think it could be technically possible to adapt VP835 parts to work in a 932, but you'd have to rewire and replace a lot of connectors and possibly do more. The boards are similar but different.
It's much faster to simply build the EuroDL serial interface like Bruno and many other did, then use the VP835 directly in your cabinet.
I do not understand why you don't want to do this. The game would be original and running with a player technically equal to the original one. VP932 is just a stripped down version of the VP835 made it to be as cheap as possible. They didn't even paint the plastic parts to save money.
Matteo