I plan to use rip-stop nylon to make a  "Poor man's awning" by running a
removable tent pole (in a sleeve in the rip-stop nylon) up from the rear hinge
of the pop-top to the upper-most part of the pop-top and then back down to
the front right of the luggage rack. I plan to then have that staked up by other
 tent poles to hold the edge of the rip stop that is away from the van.  Should
give lots of head room, and be cheap at the same time.  When I get it done,
I'll report back to the list.  I should say that this is not my original idea, but
this was discussed last (and every) summer, and this was the design that
appealed to me.  Malcolm S