Don't worry Beck your not being fussy at all!
As Dan has pointed out there should be plenty of a3's that match your requirements as they were popular :)
also has Dan has rightly pointed out, any prospective purchase needs to be checked to see if the cambelt/water pump has been changed. Also if the a3 your looking at has fully Audi service history then you can ring Audi to find out what work has been carried out on it.
cheers
Steve