Where to Trade In Form 1 + and Unused Resin

We have discontinued use of our Form 1+'s but are left with the machines, which need repair, and quite a lot of unused resin. Does anyone know of a company that would do a trade-in for the machines or materials? These are printers from a college, so the department prefers to not sell them for cash, but rather to exchange them for other 3D printing materials we might use for our other machines.

Thanks for your help!

As far as the printer itself, I thought Formlabs bought back Form 1+'s and resold them reconditioned…but I could be wrong.

Regarding the resins, if they are unopened I would start contacting resellers such as Source Graphics and ask them if they would buy back for credit or if they know anyone who does. They worst they can say is no.