For DEFO you need to have above 5000. I had about 7100 TT and about 5000 of JET and 2000 JET PIC Instructor/ Check Airman. In my group we all have over 5000, few had over 8000. As far as bases they are
KJFK
KORD
KATL
KLAX
KDFW
KSFO
As new hire you will be hired as Unified FO, you will fly both Pax and Cargo if you are on B744, first year pay is 78266 base pay +15.5 for retirment+ about 600 a month in flight hour pay. Most new hire will go to KLAX or KJFK as I am not sure if KORD or KATL or KDFW is open to new hire now I could be wrong if so someone will correct me please. Next new base is KMIA.