You said you've been through this before so I'm sure you know what to expect. When I blew two discs into a million pieces and had dual bilateral discectomys, I was probably 90% in a month. I did some serious nerve damage and still have a really weak left foot, but besides that, I was surprised how quickly I was able to get back to doing normal things. Hopefully you can make your trip, but getting the back right definitely has to be the priority.