domain name

i need advice on choosing a .com and .co.nz for domain name

i am building a website for a automobile company which is based in new zealand and i need to choose a domain name now i need advice if i have to choose a .com or .co.nz

the purpose of the website is to sell automobile/car lights, it can be head lights, tail lights for a broad range of car brands so in general the website is about selling automobile/car lights

i have done a bit of keyword research from google keyword research tool and i have chosen few keywords

automobilecarlights
automobilecarlightsonline
onlineautomobilecarlights

i client wants his website over a period of time to be searchable from any country not just from new zealand so what i need advice is should i choose a .co.nz domain because the company is based in new zealand so that people in new zealand are targetted first or should i choose a .com domain straight away as the website is for a long term startegy


alternatively will it be a good idea to build the entire website with a .co.nz domain and also choose a .com and just have one page on .com and create a .htaccess at .com and permanently redirect all traffic to .co.nz where the actual content for the website is and not on .com

any ideas and suggestions will be greatly appreciated

thanks