Got the door holder at the local dealer...I tried the stainless steal one first but it didn't look right so I took it back before installing. It's a 4 inch white plastic one...probably found on Ebay really cheap...looks stock on the trailer.
Next couple easy mods are going to be vent covers...think it might help the rain noise a little, plus will be nice to have them open in the rain.
Also, I'm still trying to get the propane to work on my grill. I haven't been able to even order the right hose to go from the quickconnect of the trailer to the Coleman grill without double regulating the flow.