cebolla : i dont know what the wood situation is right now, but with the lake fork running at 800+, it should probably have enough water in it. the drainage basin isnt as big, but its still fairly good size and there should be enough water. as far as wood, i dont know, i havent been down there this year. there is some minor property concern issues for the first few miles, but after that it mellows out into a beautiful class II/III- canyon until blue mesa. the paddle out sucks, no way about it.
as for the upper east, the drops are all fairly straightforward, i would even say IV for everything except stupid falls. thats more in the CB area, you might want to check with someone such as milo or another local CB'er as that is more on their end of the valley.