You could list specific topics so people will know what subjects you are seeking experts for.
I am an expert at finding things- like, when my husband can't find his keys/wallet/iPod/boat parts, I use my pschic wife powers to locate the items he misplaced. In order for this to work for you, you must attain a wife.
I am also an expert at provisioning. All you need for any long trip are rum, Diet Coke, steak, and beef jerky. This is called, "The Caveman Diet."
I am also an expert at eluding work with some imaginary excuse so I can go sailing. I am also an expert at "going to an appointment" at West Marine during the 10% off sale.
Last, but most importantly, I am an expert at working on a 1981 US Yacht. Interior rebuild, core rot, replacing electronics, woodwork, and supervising while the hubby replaces the macerator pump... (okay, I wasn't really there when he did it, but I made sure the damn thing worked! Quality Control!)
US 30' Wu-Wei
DIY Sailor, US Yachts owners group