Portable Swing

My daughter does competition dance and we are looking to use the porch swing pictured below as a prop. The only problem is we need a stand that is easily portable for it. I originally thought about making a 5 foot tall saw horse with metal brackets that will squeeze around the top 2x4. That way no tools would be required. sSomeone told me that might not be sturdy enough. Any suggestions would be appreciated and for reference she is 4’7” and weights around 100lbs.