HV Hydro's ESC= Strong Enough?

[Takedown]

Im am debating on if I should get this esc for my 1/5 seeing that its meant for boats and that Ill be maxing out its voltage capabilities. Its meant for 32cells nimh/nicd which is a total voltage of 38.4v. I will be running three 12v 5000mah PB batts in series to make a 5000mah 36v setup. Also it says the esc does 90a continious. Is this enough or should I be looking for more capable esc's? This is the highest amp HV brushed esc I can find so... All help is appreciated.