What kind of outboard is a good one to choose and how much to pay?

I have a 1964 woodie and have never had my own outboard on a dinghy. I was told last year, by Pennine marine of Skipton, who should know, that 2stroke motors are preferable as you can lie these flat, so the oil will not run out useful if transporting it in the rear buoyancy tank, but that you cannot lie a 4 stroke down flat as the engine oil will run out.

Then he told me there are no current manufacturers of new 2 stroke outboards and that they are as rare as rocking horse dung for the reason given above!

So what’s the opinion here?