You will probably receive more responses to a post like this on Sailing Anarchy.
I crewed on an Olson 30 in the Chesapeake in the mid-90s and it was a cool boat. Seemed like a well-designed sturdy lightweight ocean racer. Spartan inside, probably 4' headroom with pipeberths and varnished plywood, simple to sail with a single-spreader, masthead rig, wet and fast in higher winds, especially downwind in a breeze. Shallow but fairly roomy cockpit with bridgedeck. It would probably perform better where you live than here on the Chesapeake due to our light airs and chop - the boat developed very little momentum upwind and had to bear off to maintain speed.