hi Micheal,
let me ask you a few questions first:
1. what is your budget (wheels + tyres);
2. what is the purpose for the wheels/tyres? for look? performance?
a few links that will be helpful:
https://www.rsracing.com/tech-wheel.html
http://www.needforspeed.co.uk/htmlpages/TechWheels.htm
http://www.tirerack.com/tires/tiretech/tiretech.jsp
with ordering, depends on what brand you want. in the past a few US shops were willing to post overseas but a few of them will not do this anymore.