I think I'm with Shade on this one. Rapid Shot is really designed for normal missile fire, and I think it would just be confusing.
Changing to "blocked by" is fine with me. Might be clearer that way.
Updated.
An oculon stands 4 feet tall at the shoulder, with a 3-foot long flexible neck. It weighs about x pounds.
Does Construction need any revision? The CL seems a bit high.
The caster level looks about right.
The price is a bit low, compared to other golems of similar CR. Eyeballing a few other golems in that range, it looks like around 15,000 or 16,000 would be reasonable.
We should probably drop limited wish from the prereqs, since it is a bit high-level compared to the rest.