Usually the guys at TEN-TEC are very helpful with just about ANY problem you might have. I think I'd start there - for the TEN-TEC gear anyway. Be sure to include MODEL numbers of the individual items. Just tell them your story (the same one at the top of this post)
Having done that, Next try E-Bay.. Do some searches for the NAME, MODEL, etc. if nothing comes up, next search in their "COMPLETED ITEMS" listings... that will give you an idea of what the items are selling for (in an INFLATED marketplace) It seems that some people throw good sense to the wind, when they get in a "bidding war" so the prices you get there (E-Bay) might be a bit high.
As for the tower, etc. and another opinion of the radios... see if you can contact a local Amateur Radio Club in your area... again the internet can help you with this task... search HERE (this site) or at www.arrl.org
for "HAM CLUBS" in your area.
CAM - N7NBB