100 amp rectifier

I think that the rectifier on my M715 is bad. I have the 100 amp alternator with the seperate regulator & rectifier. The rectifier is the big thing mounted in front of the radiator. Does anyone know where I can get a replacement, or can it be fixed? I would like to keep the 100a system.

I have one that worked great when I removed it to put in my V8. How much is the whole system worth to you? Glen

I'm not sure, give me a ball park figure.