Replacement 1746-A13 backplanes.

Hello all,
Bit of a different question for you. I have a number of A13s (and other chassis) which have broken 'backplanes' (not sure if that's their proper name). The plastic ends on the chassis.

Does anyone know if these can be purchased somewhere? I've tried looking for replacements in many places and can't find any. Alternativly, does anyone know if they can be successfully 3D printed?

Thank you in advance,
John.

I don't think so but why bother? Chasis are cheap.

True, but if I could replace the back plane for $5 it's better then replacing the chassis for $80.