Does anyone have a proper diagram to identify the cylinder numbers? Seeing multiple possibilities online and really want to make sure I've got the right ones thanks!!

 

ALWAYS look first in the sticky HOW TO thread. Shop and repair manuals are there, along with lots of other useful information.

References to Bank-1 and Bank-2 are made with regard to the
engine. When viewed from the flywheel the right-hand bank will be
Bank-1 and the left-hand bank will be Bank-2.

Firing order: 1-5-4-2-6-3-7-8