IMHO, I don't think the above is practical.
Upon an engine failure in a SE, one is going to get awfully busy awfully quickly - unless at FL150 above Lydd
You will pick a provisional course of action, then set 7700, make a radio call, then - unless you have a conrod sticking up through the cowling - try to sort out what caused the failure (electric fuel pump ON, etc).
There are basically two approaches: one is to orbit until at what appears to be the right height / aspect ratio and then fly the part-circuit to land, and the other is to turn into the wind, pick a site straight ahead, and try to put the plane down in a field there.
The advantage of the former one is that you get a better chance to inspect it before you go in.
The advantage of the latter one is that anybody can do it - well anybody who can fly a long final, perhaps a very steep long final, with s-turns to lose height.
I think I would go for the latter method, if there were fields all over the place (which is the case most of the time when over the UK and most other "flat" places) and the rest of the time one would have to be more imaginative...