Yes there is. Two pieces of evidence, actually:
1. We know that the Confederate Congress took up the issue but blocked the creation of the court for the explicit purpose of restraining Davis' power. They would not have done this had they not feared Davis using the appointments to his advantage, as all presidents do.
2. Davis himself openly expressed a desire for creating a court and did so publicly in the plainest of English.
All we have is your analysis of what Davis really meant
My analysis is fully corroborated by Davis' word. Davis told the Congress to complete its "duty of organizing a Supreme Court of the Confederate States; in accordance with the mandate of the Constitution." One cannot get any more explicit than that.
and what he really wanted and what he really said.
What he really said is known and fully documented: "I invite the attention of Congress to the duty of organizing a Supreme Court of the Confederate States; in accordance with the mandate of the Constitution." To date you have offered absolutely ZERO evidence that he wanted anything different than what he said.
Absent any indications from the man himself in his writings then my analysis is just as valid as yours is.
Two problems with that statement:
1. You have not, by your own admission, established an absence of the court issue in his writings.
2. I have, beyond any reasonable doubt, established a presence of the court issue in Davis' message to congress.
And I fail to see where he had any desire for a supreme court.
Then you are both fibbing and intentionally ignoring direct and incontroverable evidence:
"I invite the attention of Congress to the duty of organizing a Supreme Court of the Confederate States; in accordance with the mandate of the Constitution." - Jefferson Davis, annual message to Congress, 1862