Access to CAR forms can be a little difficult. (Legalforms.com sells decent alternative forms, but the escrow companies may want the CAR forms.) But if you shop around, a lot of escrow companies will provide the Cal. Purchase Agreement to a seller and buyer that walks in the door ready to go. There are a few other forms, like the disclosure forms that are important too. Things are also a bit easier now though with the Natural Hazard Disclosure that comes through the escrow company.
Also, re: selling, MLS access is the other biggy. But I suppose you can go with a flat fee listing, and put a 1% to buyers agent on it. Just don’t expect much cooperation from the RE community. They don’t like the flat fee listers, and won’t be motivated much by the 1% to bring their buyer-clients (whom they are working in the best interest of, right?) by your house. In any event, you will still get the widest marketing thru the MLS via realtor.com, and the other brokerage sites that pick up the MLS.
Also, don’t forget CRAIGSLIST, I know two people who sold their home in SD thru craigslist to relocating techies from the bay area, who use it extensively, and don’t much like the traditional 5-6% ($40-48k for a typical decent SD house!) vig that goes to RE agents.