If you want it so bad, a carved bass will come to you. Has been my experience and I am not in debt for getting one - actually two. My 1/2 cracked from the 2018 Socal heat waved but that forced me to bring it to the luthier who made some adjustments along with gluing the cracks and has really opened up the sound.
A luthier can also open up a carved bass more than she/he can a ply-bass. Old Kays are nice though. But a DB is a violin and needs to be bowed and a carved bass's feedback to bowing is the main difference. CAse in point double stop. I can get a tri tone with a carved bass easily and it is pleasing. Sounds like crap on a ply bass.
A luthier can also open up a carved bass more than she/he can a ply-bass. Old Kays are nice though. But a DB is a violin and needs to be bowed and a carved bass's feedback to bowing is the main difference. CAse in point double stop. I can get a tri tone with a carved bass easily and it is pleasing. Sounds like crap on a ply bass.