Terry,
There was an earlier thread here on the forum about 100 octane unleaded and I think Kim C said he was getting it in Rancho Santa Fe at a Mobil station. Jackie C also mentioned VP racing fuel available @ Valley Center Oil. It looks like Ochs oil @ 1321 Distribution Way in Vista has 100 unleaded Sunoco at the pump
http://www.ochsoil.com/racefuel/sunocol%28h%29.html, which might be the best for you.
I have always used Cosby Oil in Mission Valley, but you need a keycard to access it, which requires a credit account to be set up with them first. I also use a VP station in PB on Ingraham because it is close to me, but expensive, and not very convenient for you, obviously. As far as transport goes, I used cheap plastic 5-gallon fuel containers that I believe have been outlawed for sale in CA now, as of 2007 or so. They can still be purchased online though.
http://www.summitracing.com/parts/sum-g7988/overview/There may be new "approved" containers still for sale at C2 and ORW, etc.
HTH,
TT