Starting Qanba Q1 Cut Xbone mod Need help

Hello SRK community,

I've been a long time forum lurker but finally decided to post because I am very new at modding sticks and need help.
My goal is to Xbox one pad hack this arcade stick. I don't need any other functionality besides just Xbox one.

Below is the stick I have


I am fairly certain where the solder points are on the XBox one Controller PCB due to a thread here on SRK.

My questions are
Would I need the Qanba PCB shown on the bottom? <-- assuming no because everything will be soldered to the xbox pcb but asking to make sure.
Top right of the Top Qanba PCB are just leds I can ignore these if i don't care for the lights correct?
Lastly the left side of the Top Qanba PCB should be where I solder the home and select buttons correct? I can ignore turbo and mode if i don't want them? How would i figure out which pin is which button and which one is ground?
I do have a multimeter but I'm not sure how I would use it in this scenario.



If some of this stuff has been covered already or if you have helpful hints feel free to send them to me.
I've modded consoles before with modchips but those had stupid proof instructions with videos and all. Just making sure I'm doing things right.