It is now up… Took a bit longer than the instructions said, but otherwise no major problems. Just got back from the disaster that was an LP convention, so I haven’t had a chance to put anything in it yet, but should be able to start doing that this week…
Definitely you need at least a couple of people for much of the assembly, there were parts where you needed to put nuts / screws together on opposite sides of panels that were more than an arm length appart, but nothing to difficult otherwise.
I ended up using a cement block stack on each corner, plus one in the center of each 14’ side, a full block stack in the center of the 10’ span that the door fell on, and 1/2 block stacks in the center of the other 10’ spans - each stack I burried at least one block below the surface, then added enough additional depth to make the platform level.
The platform itself was pressure treated 2x6’s tied together with Simpson galvanized ties and nails per the Simpson specs, plus 3” Deckmate screws…