try ringing import yards, they might inport a GS300 half cut for sale
VIC:
http://www.ekw.com.au
http://www.advancedjapautoimports.com.au/
NSW:
http://www.justjap.com
http://www.justjap.com.au
http://www.japimports.com.au
http://www.sssautomotive.com.au
http://www.tweakit.net
http://www.ichiban.com.au
QLD:
http://www.totallyimports.com.au/
http://www.importbitz.com.au
http://www.stzautomotive.com.au
http://www.japparts.com.au/
SA:
http://www.sssautomotive.com.au
http://www.adelaidejap.com.au
http://www.jaustech.com.au
http://www.japdismantlers.com
http://www.japanesemotorsport.com.au
WA:
http://www.c-red.com.au
http://www.hyperdrivems.com.au
http://www.modyourcar.com.au