Expect the course length to be a few days of Admin /Welcome /SEP and CRM. Then 2-3 weeks groundschool followed by 3 weeks Sim.
Not sure about longhaul line training as I'm a Shorthaul W#nker!
Commuting is possible, you can ask for a Flight Deck jumpseat and most of us will take you.
Barcelona, Nice and Geneva would be tricky to commute being junior as there are so many commuters and Staff Travel onload is allocated on Seniority.
See you on a jump seat soon, or perhaps on the 777 soon if I can get out of my initial freeze. I gather the triple is desperate for FO's as is the Scarebus fleet.
J.