Ok little out of the car realm but I figure you guys could give me a few good ideas.

I'm opening up a martial arts school and was looking at getting stall bars:



Now for our purpose we dont need that many rows of bars so I was thinking of something very simple. The space I want it to cover is 20 feet in length, simply because I want a space for many people to stretch together and theres a spot in the school where this setup would fit perfectly. What I was thinking was 20 foot 1 1/4" pipe mounted to the wall horizontal, 3 of them spaced 2 feet apart. So think starting from 2 feet off the ground, 20 foot pipe left to right, 2 feet above that same, 2 feet above that same. My problem is tryin to come up with the cheapest way to mount it to the wall. I want to use as little material as possible but I want it to be pretty sturdy. I want this thing to withstand people climbing on it. It will be going up on a cinderblock wall.

One question i have is would it be cheaper to use plumbing steel?

What would something like this run me? Im estimating about 75 to 80 bucks each for the pipe plus whatever im gonna use to anchor it to the wall. Anyone got any ideas? would greatly appreciate any feedback.