Continental allows you to purchase triple eqm's on a flight, so take flight of 3000 miles and buy the triple miles and you will have your 9000 EQM's. You will just have to see if CO will credit those EQM's to United.
Another option is to status match to Continental and then you will end up being the same Gold status for 2011 on United.
try calling up United and asking them what program they offer to maybe pay for the status.