Not an easy question to answer....
Are you familiar with the designers and manufacturers of these projects?
Are you getting plans already done (including copywriting) and you just manufacture and install?
Or is it a complete design/build?
Are these NPS projects?
Do you understand the process. (see link below)
http://www.recpro.org/assets/Confer...nding_signage_complex_environments-hunt-s.pdf
Most interpretive
signs and structures are custom made... the big thing is, what are your design, manufacturing and install capabilities? The more you sub out, the less you make, it would be hard to be competitive.
Most of these
signs/panels are done with porcelain enamel - please note that there might be "stock" solutions on these sites - (
http://www.kvoindustries.com) or high pressure laminate panels (
http://www.izoneimaging.com)