[TowerTalk] Rohn SSV … or is it? Stump the experts.

[John Todd]

Hello!
  I'm new to the list here, and I've jumped in way over my head.  :-)  I am building a new shop out here in rural Oregon, and figured while I'm at it, I should put in a ~100' tower for various antennas and cameras I wanted to set up.  Unlike most of you, the cart is before the horse - I don't have my ticket yet, but it's a matter of time and infrastructure.  I figure I'll first be using my tower for some mid-range (4-14 km) microwave data in unlicensed spectrum,  plus a 1080P PTZ IP camera for looking at the horizon that I can't see due to the thick forest in most directions. I might also put up some ultra-bright controllable multi-color LEDs that I can have set themselves to various color patterns for statuses (for example, a color slide that shows the number of minutes since someone last drove up the driveway so when I get close to home and see my tower on the horizon I know what to expect, etc.)  The amateur radio antennas will show up as soon as I have my shop done and a safe warm place in the winter to put my butt in a chair and some equipment near a tower.  But there are some problems along with just the big tasks of "making a good foundation for the tower" and "hiring a crane and actually assembling the tower".  See below.

The Pictures:
  http://www.loligo.com/big-tower/

THE PROBLEMS:
  I have a free-standing tower that I got secondhand.  It was being used as a windmill tower, and was disassembled and stored in a backyard for 8+ years until I bought it and moved it to my place (possibly the most un-safe move I've ever done - long story, but moving big stuff off the top of an un-maintained mountain home clearing is a challenge.)  I know _nothing_ about the tower, though I strongly suspect it's a Rohn.  But I don't know how to identify the sections and there are no obvious maker marks - only assembly ID numbers.  There are 5 20' sections of decreasing diameter with height, all of which except for the topmost section (shown in pictures) were partially disassembled for loading onto my trailer.  

Problem 1: Identify the tower.  Is this actually a Rohn?

Problem 2: Determine foundation structure.  I live on clay/shale that is incredibly difficult to dig through.  It took a special drill rig to go 5' down for my pole barn footings.  What's the best method to use in soil like this?  Where do I find diagrams that have some math behind them that is understandable?

Problem 3: What are the hints?  I found this: http://www.do-it-yourself-tower.com/  which was great, but 75 yards of concrete I think is more than I'll need here.  Are there other quick hints on how to get the footings aligned and poured?

Problem 4: What are the limits?  The tower had a HUGE amount of rusty homebrew insanity on it that I have since removed (shown in the pictures, but now sitting in a pile in the driveway.)  There must have been 400 pounds of steel at the top of that thing, and I have no idea how much the windmill weighed.  I don't think I'll ever have anything even remotely approaching that kind of weight or cross-section, but it would be useful to know what the weight and/or square footage wind ratings are.  If I _could_ use it safely as a windmill base, that might be interesting for some point in the distant future.  It held up previously, obviously, but I don't know what kind of swept surface area was on the turbine previously on top.

Problem 5: I am missing the bolts to hold the sections together, and probably also missing some bolts, nuts, and locknuts for the struts since I didn't take them apart and the disassembly was a bit "roughshod".  Where can I get that kind of thing, in the appropriate galvanized format?

Problem 6: I now have a 120' Rohn 45G (with hinge, two top sections, guy connectors) that I was ready to set up but now seems redundant to my needs. (and a Tri-Ex H-354 crank-up, which came with it)  Anyone in the PNW want to buy either for a reasonable price?