watterproof BL esc for a maxx on 4s???

[whitrzac]

I was thinking of makeing my maxx into a winter basher, I reallly want to keep it BL....

it needs to run a tekin 2250 truggy motor on a 4s lipo
needs to be watter proof
needs proportional brakes
doesn't need reverse
needs to be <$150

any sugestions??