Hi,

 The PDF was available on Art Jewelry's site for a limited time only. However, you can find the same plans in Tim McCreight's book The Complete Metalsmith. http://www.brynmorgen.com/CMpro.html
 

I know you can find something on this at the Ganoksin site

 http://www.ganoksin.com/borisat/nenam/advanced-bench.htm

http://www.ganoksin.com/borisat/nenam/basic-bench.htm

Good luck...Thor

Yes, I know this is an old post but here is an alternative: http://www.alberic.net/Toolbox_Index/FrankenBench/FrankenBench.html   Looks like a fun project and if your like me I would need all of the extra space.