12-1/2" arm. NewArtVinyl Black Bird. Yea or Nay?

Sweet arm Chakster!

The front tube underneath the main arm tube is where you set the antiskate if memory serves me correctly.

Chak
You are correct on the Widow arm tube, handle with care, in fact you need to handle the complete assembly with care ( as we should always do as a matter of course anyway but you get the point).
If memory serves me correctly the Widow came with three different arm tubes depending on vintage, a 2 piece aluminium , a 2 piece carbon fiber and last in line a 1 piece tapered carbon fiber tube.
And I am pretty sure it was the original aluminium tubes that were weaker and got a bad rap.
Certainly one has to be careful with the knife edge bearing assembly for sure.

MA-707 looks like a nice alternative for sure.
https://www.ebay.com/itm/Micro-MA-707-Turntable-Tonearm-Arm-Micro-Seiki-Used-Excellent-Condition/143...

Hard to find a good Black Widow nowadays but here you go.

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.at%2Fulk%2Fitm%2F223832906126

look at this, how could that price be true???

Exactly.....
Old saying.
If it sounds too good to be true then it usually is.

Your money of course 😁