i'm a new rotary fanatic, i just bought a 1987 rx7 non turbo, but it has bad coolant seals. i need help on figuring out the best way to get her up and running again. i see a alot of people say i should rebuild the entire motor or buy a jdm engine off ebay. but i dont have $900 for a master rebuild kit or even more for an entire motor. i need help