I built this work stand from plans that I found on Utah Trike's website and it's one of my most useful accessories. I built it just as described, but I left a couple of joints without glue so the stand can be broken down for transport and storage. Cutting the pipes with a hacksaw was a bit of a workout, but the most challenging part is getting everything glued together right. Unless care is taken you could end up with a crooked stand. I put together sub-assemblies first. Some sections can be squared up by laying them flat on a table. The removable rear part of the stand is an example. Once the glue was dry on the flat sections, then I put the sub-assemblies together to make the stand. Take time and care when assembling to get things straight. I spent a couple of days putting mine together.
Plans can be found at http://www.utahtrikes.com/ARTICLE-47.html