So regarding the possibility of upgrading your BOGO ticket to a FFP, this is what I found out.
Just got off the phone with guest services, and an upgrade from the BOGO is possible. The receptionist I had (who was honestly amazing) was able to eventually get the answers and to the site they needed, however they weren't able to find the RoF w/Express on the particular transfer/upgrade section which is what I needed. (However, they were able to find the regular RoF.) So their system might not be up to speed with everything just yet.
That said, he was able to easily refund the BOGO purchase (which'll arrive in 7-10 business days) and we were able to do a regular purchase of the RoF w/Express.
So if anyone is wanting to upgrade their BOGO, I'd probably wait a little and give it a shot. If not, get that refund going and purchase your FFP straight-up.