I would wait until you have the time to go through the bonding process. Because though everything could go smoothly, even with “speed dating” there is no real guarantee that it will be an instant bond when back at the house. (as it took months for Jack and Vivian to bond)
I’d hate for your bunnies to take longer to bond, and then you have to leave —which would then create more work for your mom to take care of two separate pens/cages.
Also, you could get them to a point where they are almost there, yet you wouldn’t want to keep them separated nor keep them together 24/7 without supervision, so you could find yourself in a difficult situation when you return — starting over possibly.
I wouldn’t worry about your bunny being alone for just a week.
Edited to add: I forgot to answer your other question. I would definitely wait to redo the condo until you are ready to bond. That may help prevent your bunny from getting too territorial when “home” is a new place to both your bunny and the new friend.