Ok, i have installed 10 canvas in a row... most from GoWesty, some from
CIP1.com and 2 from Busdepot.

Verdict (cotton version):

All good, only the one from Busdepot feel different, at fist i was not
impress with this one, feel way tinner and cheaper...but! after i had finish
the installation, i was very happy (not to say impress)with the fit, feel
and look (but me, i don't like the front square window), they were single
square front window. this canvas strech easily (but it feel like i would
tear it apart at first) and yes, the Busdepot one are the closest in size to
the original than the other ones. Stangly, the Gowesty one were 2.5 inchs
way to high??? not a big problem but stil. Also, i did some testing with
heavy water! Again, i was sure that the Busdepot one wouldn't be good under
heavy water.... again i was wrong.

The Gowesty and CIP1 look alike and fit alike, very good feel and fit also.

I would like to see a 3 windows from Busdepot?

Cheers, Ben
Saving Westfalia vanagon from a sure death.
http://www.benplace.com/84westy.htm