I'm considering doing the same thing. I already have a Yamaha 1x10 BBT110S cab that is 4 ohms, 200 watts, with an adjustable tweeter. Seems like a perfect match for the GK MB200 to be bolted to it.
I also have a Trace Elliot 1x10 on the way, but that may only be 100 watts. Don't know the specs yet.