If the trim ram is leaking, that is easier to reseal than the tilt piston. Seals are not too expensive but a good quality tool to unscrew the cap will cost a few bucks. If on the other hand the unit itself is shot or the rams are corroded, repairs can be costly assuming you can find a tilt mechanism, either new or in good shape.
The helm leak may be a simple as a shaft seal. Again an inexpensive part. Getting the wheel off may require a puller.
At that age, the helm pump may be shot can say for sure. You need to see exactly what is leaking.
The bottom line is that if the motor runs well even with some leaks, don't spend big bucks on a new motor. You probably will find more things that need attention on the hull.
If you don't see gas leaks or smell gas in the tank locker, don't pull the tank . Get her running, not leaking and then see if you like her. If so, pamper the girl.
