Anyone local to me capable of correcting errors on a 904 race build

I have it at place that will fix it , not going to send it back was the right choice , you can already see the finger pointing .. I did not yell , I was trying ask simple questions .

To resolve the problem , he hung up on me .. Now, jiust think what it would of been if I sent it to him, he would blame the problem on me, again .. all the time, the sprag was installed BACKWARDS..