Hey Seacurity, check out the 1970 catalog. There's the V20, V21, and V23! I just noticed it today...prompted by this post.
1970 V20
http://www.wellcraftv20.com/gallery/cat_1970/03_G
1970 V21
http://www.wellcraftv20.com/gallery/cat_1970/08_G
1970 V23 - check out that hard top.
http://www.wellcraftv20.com/gallery/cat_1970/10_G
Twin 120 hp I/O
http://www.wellcraftv20.com/gallery/cat_1970/09_G
Pretty darn cool for 1970!