Thanks to Florian for sending the pictures of his Van with rack... as well
as the fake gutters I've been looking at:
http://www.a1-autoracks.com/yakima-control-tower-track-rack.html

My problem is that I have very little clearance between the top of my Van,
and the garage door frame (about 2"), so I want something that is easily
put on and offable.  I'm aiming to carry a hang glider, possibly 2...
these things clock in at around 60lbs packed up, but are very long.  At
the moment we tie one to a 12" ladder on the Subaru's roof rack, and I'm
pretty sure we'll keep doing this with the Van.

Has anybody used these permanent mounts?  My understanding is that I'll
screw a track to the roof (probably have to cut it in half to do so, but I
can manage that with adult supervision), then the bases go in and the
towers clip to them.  Sounds easy, right?

toodle pip,
--
       Dug Smith         | Terry Pratchett: It's almost
(mailto:dug@dugbert.com) |  impossible to ride a rock and roll
(http://www.dugbert.com) |  motorbike and stay on for three verses.