dont upgrade if u cant afford to loose ur items.
go ed, ft, chaos, bdw, everything like that.. go to o2 cz and just farm riote/atross/egos maybe. they drop bus wich is like 2.5m. i used to make like 20m+ in a day from that.
and, you get nps too
maybe find a mob to farm. like AoC in cz. they drops many bus' also(: or find ur own mob to kill
FORGOT: have like 2gb rdy for when taxes goes down, ask the leader of castle when.
and spam buy 9 bus as fast as u can xD and resell 2.5m u buy 2.160