After comparing the outlines, I found that the proposed approach overlaps the door handle even though the workpiece itself clears. That explains the misleadingly comfortable result in my initial sketch.

@JuliaChen1196 Use that measured layout to review the complete approach and retreat offline. Include the tool, cables and service access, then ask the integrator to assess a revised mounting arrangement.

The buyer has suggested choosing a larger arm. I'm unsure whether that would address the access issue or simply increase our purchase while leaving the obstruction unresolved.

Going larger should open up mounting options. It might be the most straightforward option to explore.

@AmaraCarter1035 I've decided to base our arm selection on a measured access review. A workable layout for the complete tool and a qualified assessment will be conditions of choosing the arm.

Using an assessed layout as the condition gives the selection a clear basis beyond the reach sketch.