I have owned two Casitas. I love what you get considering little new technology has been incorporated. First is the battery box. Will fit one group 27 with no room remaining. I installed a 200ah LiPo under the bed. I replaced the failed Dometic fridge with a pure 12V fridge. I can run the fridge and lights for over a week without solar panels being connected. The rear frame should be modded to accept bike racks, this is a little trailer we are talking about. I want a deeper sink and it is next on the list. I am removing the bathroom sink that never gets used, rerouting the water lines for an outdoor shower. Remember as you add weight for or aft this is a small trailer and tongue weight can be affected quickly. Some worry about the rivets but I’ve seen very few failures. Others worry about the gel coat cracks, not much to worry about there either, the gel coat is not structural. I am switching to 235 tires to get a little more clearance, i have the high lift with 15” wheels already. Another nice to have is an outside quick connect for propane. I run 200w of portable solar panels but intend to add one 200w on the roof, combined with a 200ah lipo that should seal the deal for me except for running ac (i also can carry my 2200 Honda gen). If you want to see the toughest Casita built check out Bill Hillman’s Casita, here’s the link Happy trails