Is it just the game chips (base and gme chips) ? I’m new to these machines. Sound cards don’t have to be changed?  Is there a ballpark $ figure for the software? I believe RB is the man for that here correct?

Sorry for all the questions. When I get this thing up and running, what is the easiest way to turn it into a game king? 

Thanks for the info. Guess I’ll go grab a couple of I/o cards tomorrow.

I think the point was original vs improved.
You could potentially take a Ford Model T and run it on a hydrogen cell using the same logic.

The seats in the model T contained asbestos - asbestos is non toxic if its not disturbed.
Unfortunately putting your butt into the padded seat constitutes a disturbance.
Do you rip out the original seats and rebuild them or get new ones in fine Carthinan leather (quote from Ricardo Mandelbaum).
You could get lost for centuries debating this on some of the car forums.

Don't get me wrong - I agree with you on all points about the virtue of LED but when you first started your rebuild you were very hung about what coin denomination the S+ was originally while the majority here didn't think that level of detail really mattered as its an easy change and a S+ can morph into 200 different themes, countless denominations if you consider world currency etc etc etc.

In any case we are all very impressed with the nice work your doing making this Old Gal look factory fresh and are here to support you no matter how original or frankincense you want to go.

I don't really know what the coin was since it was in pieces, missing parts, I could only assume. 25¢ is a common coin with IGT, and that is what is available.
fluorescent lights are being fazed out, I can't change that, so I have to upgrade to a LED.
The hopper, coin assembly and candle were missing, I replaced them with the factory original parts.
The S+ buttons are unique, and I needed to source the factory original parts
The 110v cord was shredded, I sourced a factory original part.
The original wiring is original, nothing is hacked, cut or spliced.
I checked out everything in the slot machine, whatever was damaged, broken, or missing, it was sourced with factory original parts.
Nothing is Frankenstein.

Alan at K-LAR was a great source of factory S+ parts.
Mid West Slots had a factory S+ Hopper.
Their are others that helped me also sourcing factory parts.

The cabinet I/o boards are the same. Big question is if I switch them between machines is there anyway it will mess up the game king? That one is the wife’s machine.