Questions regarding underbelly after dealer repair

Greetings, Im sure I come across as unable to please by the dealer, but after taking my 5er in for repair to black tank valve, oven pilot light for second time, maxx fan that failed to close during rain I got underneath and looked at the underbelly and how they got open and then closed it back. For one we waited 4-6 weeks so they could work us in since we full time. During repair they turned off LP and didnt hook up shore power for a portion of time so freezer melted along with contents. Last week during rain storm the fan failed to close though the one in kitchen did properly close. They had said since we are dropping the underbelly that adds alot of time so they needed it 2-1/2 days. Since my cancer treatment and replaced shoulder and hip I am very limited in what I can do so I waited for dealer hoping to get it right. They closed the underbelly with black zip ties. I read about cutting a hole with hinge towards front, but they just seemed to cut where needed without any concern for going down the highway. Is this typical and if so will this last or how do I need to fix. I was thinking of perhaps a small backer board with screws and then after cleaning some gorilla duct tape?

Is this something KZ would repair at the rally?


Regards, Ron