A machine shop opportunity came knocking on my door and would like to give serious thought to it. But I do not have prior machining experience, am willing to learn but am not sure how long it will take.

Would like to check with this community if anyone who have been in similar situation , what advice would you have for me ?

I have operations management background mostly in tech world and some in hardware.

From financial standpoint , what are the EBITDA % are healthy ? any resources / tips to help me evaluate this deal would be helpful.