Ah, so ruredi you want everything?! :P

It's really up to you, and pretty much most combos will get you what you want. Personally I wouldn't fart around with LPG unless you are really keen on a troublesome underperforming motor that gets good milage

I was looking into the lz combo for my thou but my goals were different - 10 sec pass and cruise. Weight and cornering were no issue. If you want to be different then EFI l or a series would be cool. Ca has been done lots, but for a good reason. The z head is not fantastic, and if you are going to l series bottom why not just keep it all l.

Orrrrrr... If you want to go crazy and have some know how a ka head on an l series or a bike head on an a series.