[Nirvhana]

Nice choice of Cobra. So that will be three SPF MK3, 1 SPF GT40 and 1 x Daytona Coupe (Peter Brock Coupe) in New Zealand.
Interesting that you brought directly from Hillbank and not through the Australasian agent as was the previous purchases in NZ. I'm guessing right hand drive, full American spec?

Go the .84, and TKO600.
I like your engine choice for a SPF but think a Keith Craft 482 is a good fit and probably a concensus call on this site.

If you are not purchasing a ADR car (specific for Australia) you will need to have:
Burst proof door latches.
Head restraint (if you are having harness's) you can remove the factory seats and slip in some tomb stones for certification and then change them out.

My SPF handles exceptionally well for a BB car, just dont get of the gas on a apex (slow in hard out).
Traction is no problem and never has been, the foot is a good moderator.
I'm running 17" with Nitto NT01 315x35 and 255x40.