hey, drdavidr4u -
after asking shops all over about van eyes and coming up empty, i decided to to peruse my good ol' j.c. whitney catalog and voila!! i found a version of van eyes under the RV section.
you can search the online catalog at:
www.jcwhitney.com
2 sizes available - 8"x10" part# 90UC3051A and 11"x14" part# 90UC3052R
i ordered the 11"x14" and trimmed it into a circle which fit between the hump and top part of window. you may find the smaller size to be all you need - some on the board have trimmed their van eyes in the form of a crescent and thus no need for the larger. see MONCHA'S site on this - GREAT how to and pics!!
hope this helps !
-jose