It seems this thread is getting way off track.
Sorry Fred, but most everyone was probably falling around with laughter at the prospect of anyone buying one of those, so the thread did get a bit 'high'. I think you have the general feeling of these 2000 odd members........Don't do it!!
Go buy yourself a standard engine after researching what you actually need. Spares will be available for a long time. There are lots in regular use in India! There is a lot of help available here.
If you need a higher output, perhaps go for the Redstone. Little information on it yet but think this way - the listeroid is a clone of the Lister CS and the Redstone is a derivative clone of the Blackstone JP.
Probably neither will be better than the original in some ways, but will be in others (the main ones being price and availability). I have original examples of both. The Blackstone is not yet a runner.
Regards, RAB