Need help/guide corebooting/librebooting Thinkpad X200T

I finally got a Thinkpad and it is the X200 Tablet. Now I want to coreboot it (My school needs windows programs, I have no choice [libreboot will not work with windows AFAIK?]). I cannot find any guide on how to do it, they all are for X200. I have a modified CH341a Black version that now outputs 3.3V signals. From what I understand, I need to remove the mainboard because the flash chip is near the RAM modules.

Specs:
- CCFL backlit
- C2D 1.86GHz
- 4GB RAM (2x 2Rx8 2GB PC3-8500) (Plan to upgrade to 8GB but have doubts on the RAM type (configurations)
- 120GB SSD

materials I have:
- CH341a (modded)
- Soldering iron
- wires
- pre intel ME notebook (Devuan ASCII main repo only)

Thanks