Plans for a Walking Puppet Stage?

Here is an example of what I'm looking for.
walking puppet theatre

Hope the link worked. If not, basically, I want a self-contained puppet stage that I can "wear" so I will be completely mobile to walk among the audience. I would like it to be light weight if possible, and not too complicated to make.

Does anyone out there know how to build one? Will you share your knowledge with me? I want to use it for our church's festivals, kids' parties, and such.

I would be greatly appreciative.

Thanks so much.

By Gloria