I need some help with building my 3d printer

hey guys, im new to this forum and i was wondering if someone can help me. so i am building a large scale printer for someone (first time i have done this) and i am wondering the kind of boards and electronics i will need.

so i have nema 23s for x,y,z and so i need suggestions for a motherboard and stepper drivers for those.

also i need a dual head that is direct drive. anyone have suggestions on that? probly not lol but i want to run different nozzle sizes so...

also, has anyone on here ever done a large 3d printer? like around 1000mm? because if you could help me i need some suggestions for the bed aluminum plate itself.

thanks