Just bought an 86 13b n/a for $600 and need some help

[88mike]

i flushed it when i put in a new thermostat and water pump. it's pushing water into the rotor housing combustion chamber. i cant find the seals for the rotor housing either so i'm just gonna break down and buy another motor and put it possibly a turbo 2 but i did find a 3 rotor seq boost turbo and wirin harness relitivly cheap havent decided which one yet. Me and my friend own a mech shop so i have everything to put it all in with but neither of us have messed with a rotory before and its all new territory so we're kinda clueless without tearin it apart but i'm pretty positive its got a cracked rotor housing. on your opinon which should i go with the 2 or 3 rotor?