Your assigned domicile is the VBD. You are TDY 24/7 so you get per diem and hotel plus half a rental car the entire time you are VBD. If you happen to live near your TDY assigned base you can decline the hotel and collect half of the allowable hotel cost. If you are lucky enough to do that plan $50/hotel and $24/per diem additional pay. It's a pretty good deal IF it works. But that's not something to count on.

Training question, plan for 3+ months from day one to type ride on the bus. No idea for the 80. My info may be a bit dated so maybe someone more recent can chime in about training.