Water leak repairers?

G'day all,
 
My AW11 leaks are getting worse, particularly from behind the dash into the footwell, and the corner of the doors are pretty horrid. I'm investigating things bit-by-bit in a limited DIY fashion, but I've really been chasing someone who does the job professionally. I see people advertising their services in other countries, but when it comes to Perth, I usually come up with nothing and when asking mechanics, I generally get a shrug and told I'll probably need to DIY.
 
Any Perthites know of someone who fixes car weather leaking as a service, or failing that, anyone fancy taking on the job for money?
 
Cheers,
John