Stop. Back up. Take pictures of what you tore off the front of the motor, and both BS bores in the motor, perhaps from about 6" back from the one you posted.

If you have no BS's you MUST have already had the BS elim kit installed, or the oil pump would not have worked at all. That price seems low, perhaps because it doesn't have all the required parts. Check Engine Machine Services for a complete kit from a known good supplier for the 2.6. This guy is well known in the Starquest community for guality and customer service. Talk to Randy if you can...

Not responsible for advice not taken...