Hi Andy and welcome,
Buying an import NSX 'may' offer some different color choices over the UK cars, but not much else.
The NSX is still highly sought after and therefore offers little (if any) savings, and may actually cost you more by the time you get it here and registered/approved for use in the UK. Speak to 'Sudesh' who has recently brought an NSX this way.
Just my thoughts, but if you are looking to buy one then fit some bodykit that for many would devalue the NSX, then look at one of several early cars currently for sale here. If, by bodykit you are thinking of updating an early car to 02+ facelift, go for a well maintained and documented 3.0 and budget for about £8-£10k all in for the OEM upgrade.
HTH and happy hunting
regards, Paul
Senninha
'Too many manufacturers today are obsessed with lap times and power outputs at the expense of emotion and fun' Colin Goodwin
S2 is signed by the NSX Project Leader Shigeru Uehara