Conclusions to the search
My BIL placed the order, with the following assumptions. If we were wrong, we will post again.
I thought there were two parts. Actually there are three
1. The base that attaches under the grinder
2. The arm that sticks out of the base.
.....2a. The standard arm is where most tools rest for grinding
.....2b. A special arm provided with the Varigrind jig version 2
3. Varigrind jig for making thumbnail grinds on bowl gouges
.....3a. Original version 1, rests in the standard arm
.....3b. New version 2, rests in a custom arm that fits in the standard base, provided with the jig - item 2b
These may be purchased in three configurations
A. Basic Wolverine grinding jig - parts 1 and 2a above. About $90. Works for many tools
...A1. Varigrind jig version 1 for about $55, requires the $90 jig above (total about $145)
...A2. Varigrind jig version 2 for about $75, requires the base, bringing the total to about $165
B. Wolverine jig only for bowl gouges: Base part 1, Special arm part 2b, Varigrind 2 jig part 3b, total cost about $110, but you cannot use it for other types of tools.
I finally figured out that the picture on the Woodcraft web site was wrong - they had edited out the bar that seems to be included with the Varigrind 2 jig on other web sites including OneWay's site
After I wrote this up, I looked back and realized that Vaughan had said the same thing, but it didn't sink in at first. Maybe different words will help someone else who is as confused as I was.