Here is an interesting travel-log URL called:  "Travels
with the GTRV Westy"
http://pages.prodigy.net/chainnj/Journal.htm#2

Nice photos, he got 15.5-ish MPG

This might be GTRV's address:

Grand Touring RV Mfrs Inc. dba GTRV-USA
#3 12320 Trites Rd.
Richmond BC V7E 3R7
Canada Van Campers Type B
1-800-515-7007

On 24 Jan 2003,  Stuart MacMillan wrote:

> Well, I recently learned that the folks at GTRV, who brought us the
> Ford "Westy" (www.gtrv.com), now have a GMC Safari conversion
> available on either a 2WD or AWD van base.