I had a car upholsterer in Boronia offer to do the front bit which covers the heater channels/car side frame, front wheel arches for $50 but he was using a black material- I wanted a brown type. He had the brown - it was much thicker and would cost $140 due to the material. I had the feeling he wasn't interested tho as he does mainly high end cars.
Saw the site for Bus n Bugs near Sandringham tho - and it looks great. Its a bit far about an hours drive for me - but I've contacted them to ask for a quote.
http://www.busnbug.com/sb_clients/busnbug/bin/busnbug_carpet_kits.cfm?vm_key=AB8BA2E7-1422-72D3-A08F92796D8DCC05