Wife and I really like these ALPS chairs. We've been using them for 2 seasons and no problems. They were $49 when I bought them and if I needed another chair or two, I'd purchase them again.
I like the bag straps too.
Next year, the Wife and I are planning on doing most of the Grand Canyon Back Country Adventure Route that dave6253 over at ADVrider.com put together. Hit the Expo on Friday morning, leave in the afternoon and start the trip.
I have an unused Columbia Overland Dual Battery Tray for sale. Includes hardware. It doesn't fit the batteries I have, so my loss is your gain. CO says it is designed for Odyssey 35-PC1400 batteries, but you can contact them for other battery applications (per their website). There are a few...