Not sure if the board is original anyway, these machines normally have a Nintendo 3in1 board in them.
Looks like the ctpanels have been changed at sometime in it's working life, they normally have linework on them.
I wouldn't be too worried about de-valueing it, it looks like someone has already messed with it.
Saying that they are a good solid machine and it looks like your crt is good so your on a winnner with a 60in1.
Make a bit of cash back selling the Ladybug board.
You could dress up the ctpanels with a bit of original looking artwork/linework
+1
Would be a very rare find if it was 100% original. ANYTHING that was produced in the late 70's early 80's would have been converted later on. Please keep the CRT - LCDs loose the depth and clarity of CRTs. There are a lot of good new boards out there - there's a 276 in 1 that is good value. I've installed one for a customer and he thinks it is great (and I don't like Vids !).
Take the Ladybug board out, and convert it to Jamma - list on eBay. I've sold around 20 boards and some of the strangest boards have netted a tidy profit
