Looking for a few pieces to print to fix a parts printer

hi, i am brand new to printing (i just bought a v3 SE that i havent put together yet)

well i found this 1 on offer up (its a ender3 pro) for $50 (figured if i cant fix it…id use it for parts)

well theres a few pieces that are hanging on it (the bltouch & fan)

im looking for the print that i can use to re attatch them but idk what the name of the plate i need to print is

the fan…i have no clue where it attatches to & i thing a piece is missing that it attatches to

or if theres a new piece or 2 i can print to attatch them to…that would be great too

also theres a screen on the bottom left of the machine, i cant find anywhere to attatch the ribbon thats hanging out & have no idea what it is

*i did find a couple files on the card they left that says octopi base and octopi case :man_shrugging:

any help would be appreciated :+1: