Any ideas on how to shade the box of a 16' box truck?

[yumyumms]

At first I was thinking of making a monkey hut to shade the truck and then I got a good look at the dimesions, that certainly wont do to shade a big 'ol box truck!

Ive read other posts on using box trucks to sleep in, and it seems a shade structure that has about 1' clearance over the surface of the truck is in order.

Im not sure how to go about making a CHEAPISH shade structure over the box part of the truck I rented that will also allow air to flow between it and the truck itself (to allow the heat to be carried off)

any ideas would be greatly appreciated :) -snark too if it comes with help!

[Elorrum]

I saw a fellow who put a couple of saw horses on top of his truck and threw a tarp over those, leaving a good breezeway. It was well reinforced and anchored though, a very tight ship indeed.