HP-71b Magnetic Reader Compartment Cover?

[cmholm]

Some years ago, I bought a working HP-71b that had been previously stripped of all port covers. I replaced all but the cover for the magnetic reader compartment. I've gotten tired of looking at that hole.

On Shapeways, I see that someone sells a 3d printed cover that includes "FRAM71" in raised letters. I can make that work, but before I order one, is there a source of compartment covers that I'm not aware of?

Cheers, Carl