Recently I've had a few folk ask if I had plans to build a target stand of any type. So I thought I'd show the ones I've been using for several years. They are easy to make I used 2x4s for the base for stability. Cut it so you only use one stud approx. 24" for each piece.
You leave just enough space between the boards in the base for your top to fit in. It's been a while since I made these. But I believe I made the tops then put the base together using the top for a spacer so I knew it would be a tight fit.
I also made mine tall enough to hold man silhouette targets for combat style shooting as well as standard targets.
I suppose one could make a short top also for ease of transport. I don't have a pickup anymore and these barely fit into my Jeep Grand Cherokee. I just used 2 1/2" sheet rock screws to build mine I used them for 8 or 9 years so far.