Dozer loose the Nissan I walk into a local shop mindset
Jeeps you buy from suppliers world wide depending what you want
My must list for Australian suppliers in order is
1. Wooders Garage (Sydney)
2. Mascot Motors (Nowra NSW)
3. Hammond's (Brisbane based) They seem to have shifted their business focus lately so use them less
For 2nd hand parts is Mascot and Jeeeparts (not a typo there is an extra "e")
The sponsors in this list have their own thread in the vendors section