Check out the link that smily
posted above. You will find lots of very helpful information on that site.
The models you would most likely be interested in are:
Wee Winds, Crusettes, Bubbles & Bambis. All are all 16' or less. These little ones seem to be very collectable and usually sell very quickly when they do come up for sale....and often times for a premium price, especially if they have been restored. The Caravels, Pacers & Bambi II's are all 17' and GlobeTrotters, Travelers, Wanders & TraileWinds are still small, being 18'-21' depending on the year.
Check out the VAC List Classifieds
and there are usually a couple there each month. Another place to find them is ebay...right now there is a '68 Caravel on ebay
that closes on Dec. 15th. The bidding right now is at $3,500 but expect it to surge in the last hour or so.
Good luck with your search!