Deadline times are of course up to whomever is hosting.
2-day days,? So 48 hours between turns? Sure it could be done. Personally I prefer it moving faster than that, but it could certainly be done.
I suggest that we not have more than 2-3 games of this type running at any given time, otherwise it scatters or overly distracts players and I think it would have a diluting effect on games.
These things get crazy when you can get 20-odd players in.