My advice is if running the upper first 5-10 miles of a low water MF of Salmon trip kicks your butt then you should rethink your low water Selway plans. As it's a solid step up from that without a doubt. And the wider the boat, the more difficulties you will have, for certain.
or if coming around the bend and looking at picket fences in a raft like this shitshow at Ladle makes you wee yourself then you should probably avoid it, as well. I've put this up on MB before but just a touch under 1ft or so....
You are a new poster so no idea of your rowing skills(or lack there of),ect so the rest is really up to you and looking at your own skills honestly.