Your dead right to build it on its side and stand it up in a day. The only connections to make would be at the ground. No climbing, except to unhook the crane, and that is after everything is permanently attached.

Upon first glance, I'm thinking I would use 2 cranes to pick it flat and rotate it to vertical in the air. If you aren't qualified for planning or directing this type of lift, don't do it -- you can sub it out and learn loads in the process. Call a local reputable crane co. (maybe the ones who laid it down) and talk it through with them. They would probably take it on as a contract lift, providing rigging, riggers, equipment, etc.

Looks like a cool job, keep us updated.