The problem with such systems is that every check introduced in the name of minimising fraud, is an extra hoop that someone needs to jump through to obtain legitimate benefits.

Unless you are also going to boost funding and have a well resourced, easily accesible team available to help people navigate the additional bureaucracy, you are going to do more harm to marginalised people in need than to fraudsters.

At the risk of sounding like stack overflow, do you need to print such large parts? As a general rule I try to make multiple small parts that are then attached together rather than going for single parts that are very big or complex.

If you mess up a couple of placements or tolerances, or your print fails, it’s much quicker to reprint just that portion.