just buy your car at your current country. You can even apply to buy from other country in case you are in a LHD country. You are qualified for the program? don't waste it. Get 2 big cars back. But remember you cant sell it within 2 years (even you sell it, buyer need to PAY back the tax) so dont think about profit in this program.

The AP is issued when you apply for this program. Most important for you is actually DONT BACK yet. Once you are back. you are ineligible for it. Can i know what qualification you are using to apply for that program?