I do a complete aftermarket remote key for around that price, the quality of them is on par with OEM, genuine then yes, that is about right.

I have found that everyone is an expert until it comes time to do the job

I will send you a PM with a business in Brisbane who can supply and code a remote. Not sure what their prices will be but a phone call never hurts. failing that if you take your car to a mechanic who works with VAG ( and not one of those "we service all makes and model" places then they should have the kit to do it.