Yeah....probably not gonna get an 11sec manual for 15k or less unless one pops up that somebody needs to sell in a hurry. I would suggest you look at stretching your budget to a bf mk2 or fg 6spd manual in reasonable condition as a base. Something like this https://www.carsales.com.au/private/details/Ford-Falcon-2007/SSE-AD-3411793 I personally wouldn't touch a modified ba early bf with a stock engine, due to them being weaker. They are also likley to be high km flogged sh*tboxes, particularly in that price range for what you want. You will find them quick if you havent had a fast car, enjoy it for a bit, save up collect some parts, get it tuned and jump to like 300 odd rwkw