I can't speak to the original poster.
Here are two examples of simple and expensive to make observing chairs.
OBSERVATION CHAIR
Observation Chair- Denver Chair
http://valleystargazers.com/Chair.pdf
Observing Chair – Lybar Chair
http://stark-labs.com/craig/lybar/lybar.html
I built the Denver Chair. Took me about 2 hours. Works great. You can likely build it out of scrap lumber you have laying around. Mine is not painted or made pretty in any way.