Fuel tank should be 60 gal. Weight is 2,300 lbs without engine, fuel, etc (dry weight).
Check out these catalogs from the Gallery section:
http://www.wellcraftv20.com/gallery/.../020_wellcraft
http://www.wellcraftv20.com/gallery/...og_v20steplift
http://www.wellcraftv20.com/gallery/...og_v21steplift
Study them well. There will be a test later.