Yeah, your game ROM is v1.02. But as MotorCityMatt said, your machine will display game and sound ROM version during startup. I think Chads firmware is a huge improvement, but you gotta try it for yourself. It's easy enough to do, just be careful when you switch the EPROMS - those little legs bend and break easily. And while you're at it, get a NVRAM and ditch the batteries.
As for pinsound: I put a Pinsound+ into my SWDE to get rid of DMD noise and hum (worked!), but I didn't like the new sound sets, so I'm playing the original sounds through pinsound. Make no mistake here: The sounds will sound pretty much the same, because PinSound will just play the same sound files in 8bit (or whatever it was), so don't expect a huge improvement here.
You can however really spice up your game by:
- adding HeadPhones Station (for easy volume control, on-the-fly soundset changes and of course using headphones)
- Replacing the speakers in the cabinet
- adding the new Pinsound Shaker - I was one of the firts ones to install the shaker, and it ROCKS! You'll actually get my very own settings for SWDE because I submitted them to teh Pinsound guys
Oh, BTW: You DEFINITELY need to buy the additional DE power booster wiring (https://www.pinsound.org/shop/index.php?id_product=41&controller=product&id_lang=3), otherwise your Pinsound will stutter.
The bad news is, if you want to get all of that. you're looking at a 700 Euro investment. Personally, I think it's well worth it, but YMMV.
As for what to do with the old sound board: NEVER give it away. Who knows - perhaps you'll want to sell your machine in 10 or 20 years, and then some collector might pay a premium for having a machine will all the original parts. If you sell your board, you'll probably get 50 bucks and that's it.
PS: If you're shelling out all the dough, get a colorDMD while you're at it.