I was discussing installing stall bars into my wall with my landlord. First, he wants to make sure I won't be ripping out the wall in my room before I put them up. I have drywall. My question is How can I assure him this won't happen? And what are some tricks/suggestions? Also, If you have any suggestions for what type of stall bars I should purchase for requisite of all gymnasticbodies foundation training, I would greatly appreciate that as well! Yours, Bryce