Ugggghhhh - I cringe every time I see this topic come up - I know what you're going thru as I went thru the same thing and know first hand what a pain in the rear end it is. At my FBO it was actaully fairly lax - 250 total/25 multi/10 make and model/5 with an FBO instructor - that was for a Seneca. That was to fly as PIC - not sure what the requirements were to instruct in it but I have a feeling it wasn't that bad.
Another option I looked at when I was low time was to add myself to the insurance. At one of my old FBO's I had a deal almost worked out to have myself added on the insurance policy as a named insured - thus I wouldn't have to meet the open pilot time requirements. The plane was an Aztec and the deal was that if I paid for the increase in the premium the owner would do it for me. I think it would have cost me about $100 a month until I got enough time to qualify under the open pilot clause but it was alot cheaper than buying a bunch of multi time to get enough time to qualify.
Don't know if that angle would work but something that you may look into.
Braid - just found out today that the FBO insurance requires 200 hours multi to instruct in the twin. A couple of CFI's got "grandfathered" in at REALLY low times... and they are about to leave (one already has - flying corporate).
So, who knows who they'll get to instruct multi unless they granfather a couple in down the road.
I figured minimum multi time to instruct was around 100 hours, but 200? What am I supposed to do once I get my MEI at a whopping 15 hours multi if I want to build time if most FBOs require 100-200 hours?
I'm thinking I'm going to have to buy 100-200 hours at ATP or ari-ben just to teach multi.
Personally, I think it's a crock myself. I can see the reasoning behind it, but, then again... why give an individual an instructor's rating at 15 or so hours.... and then tell him he can't instruct?
As I said though, the FBO where I train made the "executive decision" to let these two CFI's be included on the insurance for the twin ... I *think* because they did most of their training there IN the twin....
I could be wrong though.
Hell, if you have 200 hours of multi - frig instructing - go for the regionals.