I think it's a great concept.
Especially if you could search by region, or home port;
by skill level maybe;
and definitely by commitment. By that I mean, looking for an extended berth on a cruise, and short weekend stint, an overnight race, or an afternoon racing, etc.
Best of luck with that, I am sure we'll all benefit from your attempt, succeed or fail.
I got an Old Fat Boat
She's Slow But Handsome
Hard In The Chine, but Soft In The Transom
I Love Her Well, And She Must Love Me
But I think It's Only For My Money
. ..... Gordon Bok