I'd go with option 1 providing you have no aspirations of a lot more power at a later date. It will be quick and punchy and relaible and wont kill gearboxes every 10 miles.

I'm sure all the cheapskates on here are the same ones filling e-bay with the plethora of 200bhp Rst's that never 'quite' seem up to it.

Karl ALWAYS delivers the goods and NMS horses do seem pretty strong