I had a good friend do something like that for awhile and it was tremendously exhausting. It was for a really good job and ultimately he made it work but he was so visibly depleted when I saw him. Eventually he started renting a room in NYC and just coming back on weekends, then just staying up full time till they eventually opened an office in DC and he came back. You may have to pick DC or NYC cause it could start as one or two days and escalate, or things get busy, what happens if you miss a train...Its easy for them to say one or two days now, but be prepared for that to change as time goes on.