Junkman, First off it depends on what kind it is and what size. I installed them for about 4 years. They made them out of spun alum. which were solid. Then thin spun steel (kind of rare). And also alum. mesh with alum rib arms and a steel center plate and heavy steel cap that set on the post.
Usually the post was made out of double wall 6", sometimes cemented in.
Then they made them in 8' 10' and 12' unless it is commercial, then all bets are off. Usually they came with an actuator motor which rotated the dish. The solid ones usually were only 8' and the mesh in 10's and 12's. I think that covers it.
As far as would it be worth it, gonna be your call there but try to incorporate another trip with it.
P & M Recycling - Specializing in E-Waste Recycling. 
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