never ended up doing this float, since it would still be about 3 hours flaot (14-15 miles i believe) state bridger to Catamount.
I've been doing the rancho to state bridger with my son...plenty enough action in there for a 2 year old at this level. Some actual decent wave trains (hadn't kayaked this in like 10 years).
My boss paddle sthis stretch frequently and mentioned only Sand Flats bend as having anything (class II) he wasn't sure at this level what it'd look like. But i'm sure you can handle it. This section or the State Bidge section would be your bet.
Also Lyons Gulch down to Dotsero is nice,,,,easy access (from I-70 dotsero) and has a few Class IIs at this level.