An [Ontological?] Argument for Free Will

Greetings,

I'm going to present to you an argument that human beings have free will. I have not seen this argument composed elsewhere, but if you uncover a similar argument from another source, I'd love to hear about it.

Here's how it will work. There are three "sets" of arguments. The first set has 5 premises, and should yield "C1"-- conclusion 1. The second set has 3 premises, and shoudl yielf "C2"-- conclusion 2. C1 and C2 should form an additional argument to yield C3. If you think my argument is wrong, it would be great for you to either attack one of the premises or argue that one of the conclusions do not follow from its respective premises. I'd love to hear your thoughts!

SET 1:
1. Either human beings can freely will or they cannot freely will.
2. If human beings cannot freely will, they either cannot will or they can will without freedom.
3. Human beings can will.
4. If a human being can freely will, we say that such a human being has "free will".
5. If a human being cannot will with freedom, we say that the human being is subject to "determinism".
C1: THUS, human beings either have free will or they are subject to determinism.

SET 2:
1. If human beings are subject to determinism, they perform the actions they perform but do not do so freely.
2. If one performs an action but does not do so freely, they do so because they were compelled.
3. If an entity is compelled to perform the action of evaluating an argument, they did so because they were compelled, regardless of beliefs about the validity of the argument.
C2: THUS, if an entity evaluates this argument to establish its validity, one was not compelled.

SET 3:
C1. Human beings either have free will or they are subject to determinism.
C2. If an entity evaluates this argument to establish its validity, one was not compelled.
C3: THUS, if an entity evaluates this argument to establish its validity, it did so with free will.

So, now we have C3: "If an entity evaluates this argument to establish its validity, it did so with free will". It's a conditional, and I'm fine with that. Let me ask you: did you evaluate my arguments to determine their validity? According to C3, if you cannot, you cannot reject arguments for free will. If you can, you have free will.

What are your thoughts? Is there a problem? Is it convincing, or do you find it lacking in some regard?