I used to own an Iroquois Mk II (not IIA, I believe). It was sail number 177. It was a great boat - I sailed it very extensively, including an Atlantic crossing in 1980 East to West. I finally sold it in the Virgin Islands. It performed well under nearly all conditions including an Atlantic storm off Portugal, and its 20hp Mercury was a reliable and cheap motor. The boat was built in 1976, so was still pretty new when I had it - obviously they will have aged!
Still, I'd buy it again in an instant if it was in Australia, where I now live.