Here's another side of the small troop challenge: As a roundtable commissioner I often hear from Scoutmasters of small troops that they can't use the patrol method because on troop activities, not enough Scouts show up to function as complete patrols. They then form a "provisional patrol" with no real trained leadership or organization, and the adults end up running things.
My advise is to form a single patrol, even if there are a dozen Scouts in it. Elect a Patrol Leader, and start working on your participation and recruiting, then, if successful, reorganize as a multi-patrol troop.
You will always have challenges that aren't described exactly in BSA literature. That's when you have to use some creativity. Just remember, your goal is to eventually bring the troop in line with the methods of Scouting.
Art Franz