Seeing that your in wagga there are a fair few going here in Canberra ATM.

Depending on what you want..

DATSUN 120y
http://www.allclassifieds.com.au/ac/display-ad?cid=123306545

DATSUN 1200 Coupe
http://www.allclassifieds.com.au/ac/display-ad?cid=123290066

If You want a Coupe id Run this
1971 DATSUN 1200 Coupe (This one is my best bet at a buy - No Rego, needs paint, straight, A14 engine, mags)
Price: $1,500
www.allclassifieds.com.au/ac/display-ad?cid=123289874

If A wagon takes your fancy with a A15 id buy this bad boy
1978 DATSUN Sunny Wagon - Datsun Sunny Station Wagon, 5speed A15,needs paint, no rego
Price: $1,500
http://www.allclassifieds.com.au/ac/display-ad?cid=123289877

1980 DATSUN Sunny Sedan
http://www.allclassifieds.com.au/ac/display-ad?cid=123287757


That should give you something to look at and all cheap with a good assortment plus A14/A15 engines in a couple, Being wagga only a couple hour drive to Canberra which is a good thing