100% Waterproofing?

[BL_RV0]

So, I found a really good deal on a new E-maxx 3905. My friend has a pool, ramp, and a video camera. I have the money for this E-maxx. Here's the things I'd be worried about:
Antenna Wire: If water touches the bare tip of it, bad stuff might happen.
Possible solution: doubling over the antenna and re-stuffing it through the antenna tube, use an antenna cap and shrinkwrap it to the antenna tube.
Motors: I hear that titan motors don't like being completely submerged in water.
Possible solution: get a pair of different motors (which would be good?)
Most importantly, batteries. To keep this thing afloat, I will probably pick up a pair of 2s LiPos. How can I make these waterproof? Maybe make a cover out of lexan or something and put some rubber around it?
Connectors: I will use deans obviously. Are these waterproof enough as-is? (Assuming they are shrinkwrapped properly.) Or is there a way to waterproof these?
I will probably pick up a set of stainless steel screws also so the stock ones don't rust.