Mamba max mod?

I would like to convert an extra max I have to water cooling it and making it water proof...to use in a boat

why?

because I dont know of anyone else doing it and it must be able to be done

normaly on water cooled esc's they lay a plate right over the top of the fet's? so theres no need in a heat sink...is there a way for the max heatsink to come off withoit ruining the esc?

if it can .....how would one make a device to let water flow over the fets?
also if it could be done what substance would you use to seal the whole esc after attaching the device

any ideas?