Steve,
I went with CR because it seemed like a well thought out kit and I live just down the road from Ians workshop.There are things that need improving with the CR and some of these have been addressed on this site.
Shelby 400 will probably give you better insight into Homebush kit.
If I was doing it all again I would seriously consider a Harrison as I believe his kit has a better suspension set up and weighs at least 100 to 200 kg less than a CR
I think a Harrison with a Gen 111 would be hard to beat.I cant comment on the body work of the Harrison but was impressed with the CR finish out of the mould.
Depends a lot on what you want. I think the CR would be easier to build as the inner panels are all glassed in where I think the Harrison needs panels made up.
But I like the idea of better power to weight ratio.
Phil