Yeah exactly, if you can't go over 300 an hour then don't do outcall, you can easily get to the ladies via transit and do an incall at their place. West Coast Angels will screen you because you are new, but other ladies you could see are any of the ladies who advertise in the perb escort ad section who fit your price range. There are also visiting ladies too that sometimes visit and are 300, so just check the boards and do some research and you'll be fine. Too bad you don't have 600, so you can try two different ladies.
I haven't seen them myself, but maybe: Christy (Little Miss Sunshine), Emele Devine, Athenalust, Adelaide Jones, Claire Monet, Eor any of the ladies at WCA. Alanna and Adessa are 320, so you cannot see them.