RGM Motors 920 Kit

I have had a couple of private emails & others requesting information RE: a 920 commando I am currently building.

So I thought it best to put the questions up here for all to contribute.

Has anyone had experience fitting the "920" kit form RGM or Norvil ?
If you have, Are there any problems to look out for/overcome?

For example, ease of fitment/parts replacement, compression ratios, jetting, gearing.........you got the idea...........

Thank you all in anticipation.

contact roger at RGM thru their web site. He sent me instructions and advice on thier 920 kit which was most informative