Eric,
You may well have a replacement radiator. My 3126 will run between 190 and 198 on flatish ground. In up and down hills it will increase to the 200 to 210ish range. This is with driving at around 60 to 62 mph and locking the trans in 5th. Any higher temp and I slow down until there is not a problem. I would love to run a little cooler. I actually lock in the coolant temp on the computer,Intella something, to make sure I do not run to hot. I don't have a problem with leaves as the shroud covers pretty much everything.
At 33, actually 34'2" I average 8.1 to 9 pulling my CRV. Up to 11 mpg without. Up a 8% grade for about 14 miles I did get a little hot, my fault for not realizing how steep it was and for how long.
I have started using coil cleaner with good results to keep the coach running cooler. My shroud covers both the upper and lower radiator. If you need any pic's or anything let me know.