Hey mate,sadly,no joy today.I think that I've checked all of the wreckers on Brisbane's southside and a few down the coast with no luck.I guess if you were certain that you'd take them if found,then it may be worth putting it up on the wreckers hotline.Anyway,most yards agreed that s/c heads would be worth around $125 each but that's just a figure which only matters if they're available.Sorry mate,I'll keep my ear to the ground but ,if you're thinking that you may repair your engine,then it's worth putting it out there for all to see cos who knows where one head or both may turn up.Keep your thread up to date,as you have been doing,and who knows a bit of luck may pop up.Good luck mate.