For sale is parts to make a Ghostbusters reboot proton pack! I bought all these with the intent of making one, but then life happened. So my loss is your gain! These parts were made by upstanding members of the gbfans community.

You will get:

An aluminum motherboard

Resin cast heat sink

3d printed :
Synchotron
RF board
Read out display boxes
Faraday cage
Synchotron inner spiral
Cryogen chamber handle

The 3d printed parts still need finishing work, but all of these parts are amazing!