Here's some info (mainly ErgoDox-related) I've been able to gather that might be helpful, if anyone is looking for some more info to this knowledge-base of a thread:
In late January/early February, I ordered an ErgoDox without switches & ErgoDox assembly from him via the MassDrop "GB" for it, and I also ordered MX Whites via this Phantom Parts GB. The plan was to have the Dox built with those MX Whites. In early April, MD mistakenly sent me an unassembled ErgoDox, but I told them I wanted it assembled, like I've ordered it. They sent me a label to send it to him. I've sent it to him and the tracking said it was delivered - again, this was about two months ago.
Via this thread, MX Whites might not be available at the moment (or at least not all of them) because 7bit did not quite have enough available prior to the pre-order status that they're currently in (which should end by July or something). Also, SF has said something like Prof doesn't want to build ErgoDoxes until he has all the parts from this Phantom GB.
MD has not charged me for the assembly at any point. That might be a holdup through this whole situation. But it's kind of weird how it's all kind of coming around in circles (the possibility that MD doesn't want to charge buyers to give to Prof until they know the builds are going to happen; him not wanting to build until he has parts; not being able to get all parts because of what's available/what he still owes 7bit via cash he needs to get from MD).
And until I get anything I'm down ~$310 (aluminum Dox, MX Whites) with the possibility of $60 more (assembly that hasn't been charged yet).