Unfortunately nobody to my knowledge does an etch set for the Panther A in 1/48 scale.
For my Panther A build I plan to remove the inner etch screen, lengthen the etch screen frame and then overlay this on some
fine etch mesh. I did a similar thing on my IS-2 build and although fiddly and delicate it does work.
This plan is going by memory from a quick look at the etch and conversion which I have.
Ideally we need a Panther A from Tamiya