Hi BigJim - bought it off Craig last December. He still has 2 623G's that are gathering dust. Funny that I sat on this machine with Rod before it ever had too many loads of dirt in it many, many years ago. About the Trimble 3-D GNSS levelling system - ask anyone who uses it and you find you will NEVER, and I mean NEVER use a laser transmitter again, even for flat grade irrigation work. If you haven't ever been involved with 3-D ag levelling, you are in for a treat if you ever need to. It is different to the civil stuff in that it is sooooo easy to set up and use. The Autosteer and levelling is in the one screen too.
Have a mate at Forbes using it for border check trimming this week past and he had 5 bays trimmed with the GPS compared to the same type of machine (1400 and HB) using a laser only doing 3. (time wasted setting grades, changing grades, stopping for dust etc).
I've been around Spectra gear since 1979 and this stuff is the best yet!
You doing any levelling down there?