Camshaft Thrust Plate

I have not used this myself as I am fairly confident the oil pump drag will pull the cam in without any need to push it from outside. It might have been a different matter if I had the budget for a dry sump. And I don't see a need to a bearing at the front of the cam. I had not meant to suggest it would be needed; there's a decent amount of oil in the timing cover and minimal force that would push the cam forward.

The bearing idea was meant to be the only way I could see a pull arrangement working on the back of the cam, but that wasn't meant to be a practical suggestion as much as an illustration that any alternative to pushing from the timing cover would be way too complicated.