Bought a bike that was under water. Help.

[TooRad4u]

Hi, I'm obviously new here and new to this bike. I just bought a '08 GZ250 with .4 miles on it for my wife and daughter to learn to ride on. Only problem is that it was in a flood and had water up over the headlight. I got a good deal on it and I'm pretty mechanical so I took a chance on it. Can you guys give me any advice as to where to start on it?
I took the headlight off and drained the water out.
I pulled the gas tank and drained the water.
I pulled the oil filter and drain plug and drained the water.
I pulled the spark plug and squirted some oil and pb blaster in the chamber.
The speedo has some mud in it - haven't figured out how to get that apart to clean it yet.
I started pulling all the electrical conectors and spraying contact cleaner in them.
What else?
Any good how to's on cleaning the carb? I took it off and looked into it and didn't "see" any damage.
Oh, the air box was full of water also. - drained that.