Stand Up Rifle Rests for DR Load Testing

Hello,

I'm getting ready to start my load development journey for my 470 NE K-gun.

From what I've gathered thus far, I understand that a stand up rest is the best way to shoot the rifle because it simulates the recoil under "real" situations and is also less punishing than sitting down.

My only option is a public range where they already have very sturdy wood benches. I figured I could make a table top "gizmo" for that to use for standing.

Do you guys have any ideas, best practices or pics of set-ups or devices that you could share?

Many thanks