That is the farthest thing from the truth with my mechanic. My family has been using him since the first day he opened his shop 15yrs ago and he is extremely honest. He actually prefers I source the parts for him.
Once again, no scam with my mechanic or easy money being made on marking up parts or installing parts not needed. He explained that Florida Laws concerning rebuilding certain parts hold him liable and he doesn't want to risk something catastrophic happening to me. I respect his opinion and I'm grateful that he is looking out for my safety. He has no problem sending the master cylinder out to be repaired and then he will install it.
So my question still remains unanswered. Does anyone know where I can source an aftermarket MC or am I stuck trying to find an OEM one for my 2004 Esprit?
Yeah, OK. Easy there big fella.
Time to engage the brain here....
Have you looked at the bore? If the bore is good, there's absolutely no reason to replace the MC. Other than the mechanic making money off the part sale, as previously mentioned.
With a good bore, the MC is easily made as good as new with a seal kit. Probably not more than about $25 bucks and an hour labor. You stick with an OE part that fits and is of good quality. And, you don't have to waste time looking around for a replacement part (which may not be of equivalent quality).
If the bore is bad, I would consider sleeving it with silicon bronze or SS. There are lots of places with skilled people who do this for a very reasonable cost, and then the MC is actually better than new due to the improved corrosion resistance. I've done this many times with clutch and brake MC's. Pics attached of my ferrari MC sleeved with bronze.
Relaaaax man. And go ask your super duper honest mechanic what's the condition of the bore. You might want to actually look at it for yerself.