Frankly, as an Android developer since the 1.6 days, I find your numbers highly suspect. I have worked in several small teams with equal Android and iOS resources, and on every one the Android team has a much lower crash rate, no significant difference in bug rates, and has the same development times as iOS. There is absolutely no way it's as expensive as you're quoting to add devices.
Maybe I'm just an amazing developer, but I doubt it. Stick to the documentation and understand the system you're programming for, and you don't have to tweak for every device that exists. It's a pretty consistent platform in my experience.