I think the 12832J nipple location may well clash with the rotary control. The other thing that I remember about the J is that the legs are shorter, hence you may have more fun mounting it on the board (nothing that can't be fixed by soldering some pinstrip header into the display board, then soldering the legs to the pinstrip I guess... if you're ok with that amount of soldering).

Desoldering displays for reuse isn't easy though. I tried it once and it was very messy.

I was slightly amazed that Noritake still list the 12832E display...