If you want an alternative suggestion you could try an MVVS 90. I have one myself but I have yet to run it in anger.
They are supposed to be a animal of an engine once run in. and cheap as hell to run.

I have a Skystar I am just finishing off and it has the WEebra 80 in it again a good engine but I am serioulsy thinking about getting another Skystar and kitting it out for Electric. The conversion should be fairly straight forward and the performance would be awesome.

Mike