So you know that you either have 0 outside losers and a nine card fit to the KJ (2-1 favorite to also have the T), or 0 outside and a nine card fit to AJ (2-1 favorite to also have T), or 1 outside loser and a nine card fit to AKJ (50-50 to also have the T).
Would you try your luck with 6♣ playing your best for this board?
Is it worth pushing, knowing you are down a lot in the match?
Incidentally, I also had the chance to relay 3♥ on this hand, instead of key card, and if I do that I get a 4♣ response showing 4 controls (AA or AKK) and then over a 4♦ denial cue bid start, partner would show one of the top 2 honors in both black suits by bidding 4nt. Now I'd know nine card fit, missing the K, no outside losers, but the Q would be a mystery (4/7 chance partner has it), but I couldn't get out in 5♣ as that would continue the relay ask.