If you're saying that the sn1987 explosion HAD to have happened long before creation week, then you're doing two questionable things, 1) You're still trying to fit the supernatural act of creation into the very limited time frame that humans are capable of understanding, and 2) you're taking on faith, (accepting as fact) all the guesses and speculation about hundreds of thousands of light years, things that are not science, not falsifiable.
As you have been shown, the distance to SN1987a is based on measurements, not faith. Will you admit your error? That would be the honest thing to do.
Also, you seem to suggest that God included a fake history as part of the creation, a history that has no function other than to fool us. Is this really what you are claiming?