Re: small outboard advice
My personal favorites are the 10hp johnson or evinrude from the 50's and 60's. Pretty much all OMC 2-strokes from the mid-50's to when they stopped making them are good. I wouldn't get a 9.5 omc because they're hard to work on.
I prefer the 50's and 60's OMC's because the ignition systems are cheap and easy to work on/troubleshoot. As was said earlier, there are VERY few cheap outboards that don't need work so I would keep that in mind when looking for one. I wouldn't buy a mercury small outboard to use in saltwater, especially one that is pre-1976 because they have mild steel driveshafts and the saltwater will eat it up.
To me, the best place to find a small outboard from a trustworthy person that will probably tell you what's wrong with it or sell you one in good shape for a reasonable price is to place a free ad on aomci.com. I've always found the folks there to be honest and they do a good job packing them for shipping. If you get one on ebay, I'd say there's about a 60% chance it's going to arrive with something broken.
Just my opinion,
JBJ