Hi Mark
If you want to register an Eleven in Western Australia you will be faced with some major hurdles that you may not be able to overcome.
Firstly is the height of the lights. The Australian Design Rules make an Eleven very difficult to meet the minimum light height. Others have tried before.
Secondly forget trying to register one with a MG engine. Australia is not like the UK that considers the new build to date from the donor car. It is taken from the date you apply for a build approval from the Dept of Transport. This means that currently you will have to use an engine complying with ADR 37/01 emmission regulations which means something year 2000 or later. None of the old engines will cut the mustard.
You will need to pass a 5 gas test and will need a catalysed fuel injected motor to get it over the line.
I hate to burst your bubble, but would hate to see you build a car and then find you cannot register it here.
One of the first things you must do is apply for a build approval, forms are on the Dept web site, and engage an engineer. The choice of engineer is also important.
We also have a very good club in Perth that can assist you with advice through the process.
Regards
Greg O'Brien
President
Sports Car Builders Club of Western Australia
(and fellow Westfield owner)