bringing it back to OP's suggestion : I was thinking about having a 'share' link to the market for your vessel : then a 'ship=market' thread in forum for sellers who can then extol the wonders of their particular offering and include the direct link to it in the market.
This would be useful for 'pro' dealers to, who can put all their offers in one post with links to each, then update it as needed. (Perhaps a forum like the newspapers can be dedicated to such ship-brokers?)