+1

I used handlebars for my base, and I bought 2 used dials ($20). You can get new dials at Harbor Freight for $15. For a beginner, the dials are way easier to use because you can measure the position of the rim statically. With a caliper indicator, you can only compare one spot to another on a moving rim. It's easy to see how much the rim wobbles, but much harder to identify the exact spot where it's high or low, or by exactly how much. Most builders who do a lot of wheels find calipers easy and faster to use, but even some experienced builders add dials to their stands. http://www.jimlangley.net/wrench/mytruingstand.html

Unless I needed to do a lot of wheels in a hurry, it would be hard for me to justify more than the fork with dials and zip ties.

em