Could not get what you ended up modding. I left at the following point since it was not worth my time
1) Screen cannot be modded with the trigorilla board
2) Interface cannot be modded
3) The Wiring hub and circuit needs to be modified with more relay interface and PWM
which finally led to the conclusion that better use it as is as else all that will be left is indeed a stable physical steel hardware platform, as the rest will have to go or be scrapped.I stopped at that on i3 mega as i can achieve all the mods to my satisfaction on my other 3d printers.I tool this is my another vanilla printer on my octopi with no modification.END OF STORY.........