Great thread and congrats on the excellent results.
I'd like to recommend Mr Pinbologist for any b/g restoration. Mitch is a pro and does great work for a reasonable price. Check out this thread on one of my b/gs.
http://aussiepinball.com/index.php?topic=10813.0Mitch is just up the road, relatively speaking, in Wauchope near Port Macquarie.
Here's a nice tutorial on Williams chimebox repair.
http://www.pinrepair.com/em/index3.htm#chimesSomehow, they never sound as good as the GTB box.
Looking forward to seeing this one through to completion. I remember Skylab as a fast and fun game and was sited in 3 places around the Blue Mountains when i was there in the mid 70s
