Any tranny guys in Colorado?

I really need some help with my 5spd I have pulled it twice I took it apart got it put back together by AAMCO transmissions. Everyone there at that shop is a hack mechanic. I took the tranny apart and went there to press 2nd gear on and they seemed nice and said that they could put that tranny together for me because it had been a year since i had taken it apart. So i get the tranny back and put it in. The clutch won't fully disengage and the tranny is leaking and when it's in 2nd gear it makes this sound like metal is hitting metal. So i take it back and they said that they would fix it so they find out that they put the throw out bearing on backwards and they fixed the leak. But that noise from inside that tranny is still there. So now they won't touch it because they said that they won't warrenty it because i had taken that tranny apart. So now i'm stuck with a loud noise in they tranny and i'm trying to sell that car. I was trying so see if there was anyone in my area that would be willing to take a look at my tranny. I'm going to pull it myself i'm just not familiar enough with
the internals of a tranny or what could be making that noise. Thanks and sorry for it being so long.