I have never wanted a grill attached to the wall of the camper, I know a lot have them but to me the smoke and possible flame going up the side of the rig would not be good. I have a small table that I use a few feet away. As said, it is low pressure, did the grill come with the trailer? If not look for a low pressure or one that can me modified.
As mentioned above, you might want to camp once or twice and make a list of things you want to add or change so you are not doing things 2 or 3 times.
Good luck and congrats.
ME '63, DW 64, (DS 89 tents on his own, DD 92 not so much), DS 95
2013 Premier Bullet 31 BHPR 2014 F350 Crew Cab 6.2L 3.73