Welcome to our watering hole Andy ;o))
Speaking for myself, I need to actually see the things in action before my antenna of desire twitch enough to raise the flap of my wallet. I bought several engines when I was starting out that didn't really light my fire because I didn't really know what I was looking for. A good indication is that you find yourself staring at it ;o))
This hobby does have the considerable advantage that there are still interesting lumps about that don't cost a fortune and if you do buy something it later turns out you don't much care for you can always pass it on.
A couple of bits of general advice: whatever you buy, make sure it has both magneto and carburettor. Carbs can be hard to find and you can spend as much on a replacement magneto as you can on buying the engine. Don't be afraid to ask for advice, there are a number of very smart, well informed and helpful people here who are delighted to help.Whereabouts do you live? In all likelihood there will be a club locally and going along to a club night would be a good second step. Contact addresses appear in this month's Stationary Engine Magazine.
We look forward to vicariously sharing your adventures!
Regards,
Kim Siddorn
"Spring in the air?" "Spring in the air yerself !"