Well, after all is said and done, I've decided to sell the cab! During this period, I sold my tube amp and went digital (Axe FX 2). Plugging into the house PA was the only option for me as I did not have any cabs for my gigs. Since I got a hold of an Axe, I felt (for me) this was the way to go.
Still having a hard time monitoring my sound onstage so in the meantime I'm using a Mackie powered wedge, but much prefer getting one of the newer FRFR monitors.