Got 2 RB20 engines one had a little knock on the bottom bare engine with both side manifolds and turbo still attached - 200$
and another bare engine unknown condition - 150$ was running before removed just sitting for month's in the back of my van .
In case you need to rebuild RB engine I do have new timing kit,water pump,N1 oil pump,MLS metal headgasket and VRS engine race kit inc metal headgasket , front rear seals all new .
Brisbane south