Have 3 kids, so I try to fit as much as possible in all the spots. I have two of these:
They look like they were made to fit. I currently have blankets in them (2 each). They like them when traveling...
Are you part of Austin Jeeppeople on Facebook? post there and see if you can get a group. There are lots of people willing to go, but it is woah hot right now. There will be some newbie runs set up in the next few months, I am sure.