I'm very sorry for your loss. If you're new at the TT thing, it might be worth meeting some people from the forums while camping in TX. This is a great community and the FRF members are amazingly helpful. I'm sure you could find some of them camping near you. They could also walk you through your rig a bit, so when you go back to the dealer you're a better informed consumer.
Just a thought. I'd offer to help you out, but I'm in Virginia...
Best of luck!
2008 Forest River Micro-Lite 18FBR
2000 Ford Explorer Sports Trac