All keyboards have been shipped out now! I was waiting to update this post until I had fulfilled a replacement that needed to be had.
So to summarize everything, we ended up using PayPal to invoice instead of Google Pay due to similar but worse issues that PayPal actually has as I am a minor. I was able to get all invoices out promptly, and all but one or two went unpaid so I unlocked the slots and opened them for others. Once all had been paid the order with the factory had been placed, and the factory fulfilled them successfully and on time. There were a few issues with the boards, one being that the threads were a little tighter than I hoped for causing for some issue with a few boards. One board had to be replaced due to my error when packaging, which I had then replaced. The rest of the boards were shipped out before the New Year while the other had to wait. Two boards were damaged in transport, which I promptly dealt with the best way possible that made both parties happy.
Overall, I believe that the groupbuy went rather smoothly with a few small bumps in the way to the end. Can't wait to host my next groupbuy!