What you have here is unsimulatable (if thats a word).
Missing component values to start with.
And the way you are presenting it, its's more of a "reverse engineer" from the PCB layout project rather than "schematic to LTSPICE" project.
and with missing component values and semiconductor types simulation becomes... "problematic"
If you can't find an exctual circuit diagram at least let us know what the "thing" is since manufacturers sometimes have similar versions of their circuits in use in other models.
So add more info to make the project
a) Do-able
b) more reasonable in price
c) end up with something usable to simulate
If I'm wrong on any other above I'm sure I'll be corrected soon enough