Melissa,

Does it look like this:
http://www.vanagon.com/info/accessories//inexpensive-awning/
in which case it is an ASI conversion out of Portland, OR,

Or does it look like this:
http://www.kahl.net/campers/vanagon.htm
in which case it is from Country Homes.

Both are certainly serviceable set ups.  With your unknown "basket case"
engine you might offer $500 for this one and buy a running used engine
from a list vendor.  Get all the ancillaries you can too, there is no
telling what has been done by someone who obviously got in over his head
here.  Sell your basket case engine to a salvage yard for a few bucks.

You could have a great camper for under $2000, including engine
installation!
--
Stuart MacMillan
Manager, Case Program
800-909-8244 ext 208

Getting your share of the Net yet?
http://www.cobaltgroup.com
http://www.casedealer.com/demo
http://www.caseihdealer.com/demo