Tonearm fix. (Marantz TT-6000)

Hey everyone, I have 2 TT6000 turntables. One works great no problems, the other , is amazing condition. Except the tonearm is broken off where the screw connects to the arm exactly at the counterweight. 
I’ve heard of people using epoxy, but with it so close to the end of the arm and the counterweight I don’t want to risk it. 
 

Would another straight tonearm similar to the 6000 work, like a few available ones I can find on eBay TT151 etc.Or would it have to be an exact match? Any suggestions would be helpful. Thank you.