17.0 x 35.0 x 68.0 Rolling Garment Rack and curtain or blanket over it.  For now?      

Is there supposed to be a picture or link?  Even so I can visualize the garment rack.  You could use that and it's portable!  The only thing is depending on the audience, they might be able to see on the sides, but it should work if you position everything just right.

You can make a stage out of pvc pretty inexpensively too.

Here are a couple that I have made from pvc.  You can make them many configurations!
http://puppetspace.blogspot.com/search/label/stages

Angel in Tx, I'll be showing the puppets from high above curtain.  I'll try not to be seen by people, if in library.  That's my first place for my. puppet show. 

Thanks for the pvc website, Angel in Tx.

I'm sorry there are no real instructions on my blog.
But I still think you can use the garment rack just fine for now.

I have a few good tutorials listed here for stage ideas:
http://www.schoolofpuppetry.com.au/tutorials.php/free-puppet-theatre-patterns
A lot of them for booths, all with diagrams and measurements.

Thank you, Na. 

You're welcome!