Leonard,

I'm just curious: Why would you not consider digital setting circles? They're accurate and very simple to use. They have object catalogs built into them -- and they're not expensive given their general high quality and great utility. And they work on alt-az or equatorial mounts. (Buy one DSC unit and use it for both your Dob and your refractor.)

In my opinion, digital setting circles represent the most significant advancement in equipment for amateur astronomy over the past 50 years.

Charles