I would stay away from a full dry suit. They are expensive and not made for the constant movements a sailor makes.
Hi Mixmkr,when you say 3/2...are you talking 3mm to 2mm thickness?
That sounds like a good plan. I have found that a call to the outfit you are buying the westsuit from helps as having a real person on the phone can really help with getting the right size.I think I'll just have to order one and see. I'm guessing order a size larger in most cases.