If one is united with Christ before believing, what is the use/need of the cross and the shed blood of Jesus. From what you have stated there is no necessity for the cross. The finished wok of Christ is of no value and has no meaning.
Salvation is being saved through the blood of the Cross. Reconciliation is the restoration process thus being a result of salvation. It is not salvation per say.
John 10:16 New King James Version (NKJV)
16 And other sheep I have which are not of this fold; them also I must bring, and they will hear My voice; and there will be one flock and one shepherd.