Ordering parts for the valve train

Ordered new lifters today as a pre-caution to the miss fire issue, thought whilst the head is being worked on it is best to replace the lifters as they have not been replaced ever.

Picked them up for $49.95ea from Frsport.com, $57.97 del and also grabbed a new apexi filter whilst i was at it. I thought about doing the rocker arms as well but it was just getting to much money.
As it stands i am up for $440 for the valve springs (unigroup ones), the Lifters and also labour of $400 so is an expensive exercise.

I really hope this fixes the issue as from here i am about to shove these cams in the bin and go back to what i had before.