It is an S77, a 2011 model. It does work nicely, it is even a little easier to set than the R72 it replaced, but the same concept. For it's physical size the capacity is impressive. We run an 8 row corn head, which is no challenge for it, but it matches our planter (16 row) and field shapes/sizes better than a 12 row might. Plus, moving between fields and starting lands on 1/2 mile rows works great. The 390 bushel tank is quite large, but still wouldn't quite allow breaking all the way through 1/2 mile rows with 12 rows. The 35 foot draper is a nice size for it, but I have seen 40 foot on one, and it was rather impressive. The extra five feet didn't seem to make any difference in the travel speed.

Just give Kevin Bein at AGCO a call, I'll bet he can arrange something for you. I promise you he will be enthused!
Edit-Kevin's last name is spelled Bien. If you are monitoring this, I meant no offense!