I did it the old fashioned way... got a piece of paper, popped the hood and counted up the numbers and colors. Also, remember to get non-ghosting for inserts. Not all of my inserts flickered when I originally used regular led's, but about a third of them did and I had to go back and re-buy the correct bulbs.
Also circling back to the original topic, I think you got a great deal. Sounds like mine needed a little more work than yours will and I paid $900 for it... but I don't regret the purchase at all. Great game!