PrintrBot Simple Metal Metric Z Conversion

With the PrintrBot Simple Metal approaching end of life, I've been thinking ahead in terms of replacement parts. Most of the parts on the PrintrBot are fairly generic or can at least be (relatively) easily swapped out with industry standard components, but one part that really worried me was the Delrin Z nut. This is one of the only parts on the printer that is both proprietary and consumable; eventually the nut will wear down and will need to be replaced.

Rather than buying a bunch of them t