I live in northern NJ and I have a Trane heat pump with Aux heat. My outside unit just stopped working and my AC guy says the compressor need to be change. What if I change the whole outside unit? Do I need to change the inside unit as well (the evaporator)? Since I am not able to afford a Trane outside unit I am thinking about getting a Goodman? It is compatible with my current inside units? Any suggestion is appreciated.