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Lee, I got this from a recent AAM conference.  Low cost from $150 to $350sq
ft.  Medium cost $350 to $500sq ft, High end/high tech between $500 and
$800 sq ft it could jump to $1,000 sq ft  depending.

Hope this helps

Richard Fedele
Manager, Public Outreach Dept.
Kitt Peak National Observatory/NOAO
950 N. Cherry Ave.
Tucson, AZ 85719
520-318-8163
fax 520-318-8451
[log in to unmask]
www.noao.edu

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