If needed, in the PHX AZ area I know a company that does extremely cheap multi engine time building. Pretty sure it the lowest in the valley. I've known a lot of guys who have racked up 20-50 hrs in a short period to boost their resume for the regionals, but as said before, in the phx area now I know many of the big academy schools are giving signing bonuses for new hire CFIs Or the skydiving outfits are usually running non stop on the weekends. PM me if interested in any more info..