Success
I got the balance shaft elim kit and rebuilt the oil pump with the stubby shaft and deleted the both balance shafts and got it all back together and she runs sweet with no extra vibration and all knocks are gone. Put new belt and belt tensioner and pulleys in just to be sure and tidied it up while I had it opened up.
I cant believe how well it runs now all with a very cheap and fairly easy job.
I didnt remove the engine from the car and even with the bearings to block off the balance shaft oil feed to keep good oil pressure, I simply used the old balance shaft itself turned around to knock the back one out and back in place, perfect size.
Cheers for guidance given it certainly saved quite a few $$$ for me.