We put in at potash and paddled 2 flatwater days to the confluence and then 2 whitewater days and then one last flatwater out to Hite. The last day had about 10 miles of zero flow and drug on a bit; no motor.
I think it was totally worth it, but if you have heavy 18' boats, the last day could be painful. You could also break up your camps differently, we stopped on Rapid #10 for the surf wave, but could have gone a few more hours and saved some struggle on the last day.
"Paddle silently, boof loudly"