I'm a long time satisfied customer of Sundance at Palo Alto. I'm sure they'll be able to accommodate you.
For aerobatics, you can't beat Attitude Aviation at Livermore. They're the real deal, they have a Pitts, Decathlon, Marchetti... also just a satisfied customer there.
No idea for HAF I'm afraid.
You don't say where you're from. If you;re from the London area you'll probably get the hang of the Bay Area airspace without too much trouble. But it is super-complex. You should spend some time looking at the Terminal Area chart and trying to understand the vertical aspects of it. From my house I look up through about five different pieces of airspace!