One thing I think must be cleaned up. You seem to not know much about Servant stat sheets work.
First of all, most stat sheets do not have more than five skills (class and personal combined).
Second of all, the Saber class does not have "Independent Action" as a class Skill. Only the Archer class does.
Thirdly, there is no "S" rank. The scale goes from E-A. Plus or minus signs are added to signify a boost or penalty in stats for certain conditions. There is also an "EX rank" used for abilities so powerful that they cannot be properly measured on a scale.
I would try to not include "Reinforcement" as a skill since it simply a very basic form of Thaumaturgy, which is an actual skill.
If you want a bit of help, just look at the stat sheet for EMIYA/Archer
here, since EMIYA in canon is pretty much the definition of what Shirou Emiya is as a Servant, so he should at least serve as the base for any AU Shirou Servants you would want to make.
Depending on how potent your "Shadow Familiars" are and how they play a part in the Hero's legend, they could be a Skill (Jeane Alter's Dragon Witch ability), a Noble Phantasm (like Iskander's RM or Gilles' spellbook), or just a regular summon that is not even worthy of mention (like Medea's dragontooth golems). Given they are not good against Servants, it probably is not a Noble Phantasm, so keep that in mind.
Stat wise, this Emiya is not half bad. Not sure about the stats in parenthesis are for though.