Another rebuild question

So I will be getting ready to pull the /6 225 motor out of Scampie, and do a rebuild on it, since it is low on compression, and starting to leave its mark in the driveway.

To start I am trying to gathering most of the required parts I will be needing (did I mention my neighbor will be helping who is ASE certified) so besides the obvious: machine shop for the head work, gasket set, timing chain and gear set, etc...etc... can I bend some minds for anything I might need, or look out for during the process?

I will try to take pics. thru the process.

Last motor I did was 30 + years ago in high school auto shop.

Thanks fellow members