Renton – a quad of the latest crees will be approaching 1000 lumen in theory – in practice it will be less.
I am not sure if you can run a quad from that battery – a quad needs 14.8 v ish – a buck driver needs at least one more so needs almost 16 v minimum from the battery. A boost driver needs one less v – so must be under 13.5 volt maximum- so it depends on the battery voltage.
I am sure the triple will work as that with a buck driver only needs12.1 volt minimum
the other option would be to use a MCE kit – that needs different drivers depending how the dies are wired up.
Have a look on candlepower forums for more info.
You will do well to beat an HID with homemade LED conversions – but a quad should do it if you can get it to run.
Read up on the cutter site as well.