PCB question

I think for my first go at AOG im going with pcbv2
couple questions
where is the best place to order boards from ?
I Hope to add auto steer with phidgets motor
and section control What if any other boards do i need to order ?

jlcpcb. Just do a search on this forum site. Section control can be used with a nano, and relays I believe. Wouldn’t have to have pcb. Order terminal conversion for nano and jumper wires. Someone chime in if I’m wrong. Decide if you want usb, or UDP and order acordingly.