Well Guys, the wait is over...SAWDUST!!! We started actual construction yesterday of the deck.

After some further discussion, we went with solid 1 1/8" plywood decking. We trimmed it to fit the width and then routed in a new grooves.

We then fitted strips of 1/2" ply for the joint.

Here's the deck gluing up.

The joints turned out nice and tight.

Once the glue set, we attached the deck to the frame using carriage bolts and PL400. The chassis was dead on square so we're going to make the deck match the frame using a flush trim bit.
The wall material has been ordered and should have the cnc walls ready to assemble this weekend.
Regards,
Dave