Jack,
While those pictures don't make it easy to tell at first glance, I can see enough to be 99.9% sure it's a PHV-1.

Yes, it's definately worth a look for anyone in the market at present.

The PHV-1 and the A&WC are often described as being almost the same as each other in design and operation.
Not true, they are vastly different in the way that the third bite operates. Totally different systems, even though they look "similar".
There is nothing wrong with the PHV-1 though.