Advice before I take the head off

[professor]

I am about to break the chain and remove the head bolts. I know that the TDC has to be set and marked but the markings on the front balancer are confusing and the cam gear sprocket has markings as well.
This is for a M102 (190E 2.3 8V).
Should I even worry about all this? Will it be simply advisable to line up piston #1 to its highest point once the head is gone and I can actually see this in action then just worry about where the cam should be? In that case how would I ensure that the cam in the head is where it's supposed to be before I mount the head back in?