If you are having regain issues with the VSG, a revision to an RNY will likely be of little help as it's regain character is similar to, if not somewhat worse than, the VSG. The linked article that was just published in the OH newsletter outlines the differences between the different WLS procedures, and why the RNY may not be your best solution:
http://www.obesityhelp.com/articles/choice-of-bariatric-procedure-a-philosophy-obtained-in-20-years-of-bariatric-practice-2/
In the article, Dr. Roslin's conclusion (and that of most surgeons who aren't tied to selling the RNY since that's the best that they can do,) is that the DS is the more obvious choice, both from the perspective of it starting out with a VSG and adding the malabsorptive component, and also that it just plain works better than the RNY, particularlys since the RNY's caloric malabsorption is only temporary.
Fortunately, you do have access to two of the best in the business in your area - Dr. Rabkin, who works out of San Francisco, but has an office and support group in Ventura (unfortunately, it was last night - first Wed of the month,) and there's Dr. Keshisian who works out of Glendale. On the cost front, Dr. Rabkin is out of network for most insurance plans (though his hospitals are in-network) but I don't know of what insurance affiliations Dr. Keshisian has (call and ask.) I have Aetna and they covered Dr. Rabkin's fee 100% as we had already hit the max out of pocket limit on the policy for that year, so that's another consideration.
Good luck, and research and consider options carefully. As is often the case, the short term cheapest route may not be the best or cheapest in the long term - I know of at least two local patients who are double-revisors - band to RNY to DS - which is something that you really want to avoid if at all possible.