Help with URL for Kelly Blue Book references for Sail boats

[captain.ron]

Hello ! New member here...
Been struggling with how to use this site but have
found some things (dollar & cents forum here) and
have tried to send out below to 5 people user names
and have failed stating the user names are not valid?
e.g. user names where valid !!! ?
Question and subject to group..........
I would like some help with any reasonable internet
Kelly "type" blue book URL references so I can effectively price boats from a starting point ;knowing of course that pricing will be plus - minus dependingupon differing other specifics such as equipment that
may be included or not in pricing.
Help me please with good internet URL references
for pricing sail boats.
Thank you and appreciate warm welcome of member (s) I have exchanged with so far !!!
Please help again.