Stop in for a cup of coffee

So, I mentioned the other day, that I am rebuilding the numbers matching master cyl for my Cuda. And found out the bore was too pitted. Thought I could find someone fairly local to sleeve the bore for me, but to no avail. Poked around on line and found a few out of state on the interweb. Called a guy in NY and talked. Told me $260 to " Brass" sleeve it !!!. Almost pulled the trigger and sent it out. But did a little research on FEBO and found a thread with a link to a shop in Minnesota . Called and talked to Brad yesterday at Brake Equipment and Warehouse. Said they only sleeve with " Stainless" :D. Told me the price is $140 and two weeks turn around..:D....Sent it out to him this morning :thumbsup:
Question, im no chemist, but stainless and aluminnium dont play well together. Am i wrong? I guess the piston doesent really touch the bore so its should be fine..