Bunk reinforcement and need for 2nd AC on 2400bh

Add wood to walls going from the floor to the bottom of the bunk.
Add ledgers under bunk if they can be screwed into studs.
If you don’t have a 50 amp service, you will have to figure out another method of getting electricity to the 2nd unit. A 30 amp service is going to be taxed to run both at once.
I added a line to hook up to the 20 amp outlet at the pedestal so I could run the microwave and the A/C simultaneously. You could do the same for the 2nd unit.