Hi Doc,
don't know overseas prices,
my 9000pro had 76 keys, from memory, I'm fairly certain it had pianist mode.
Roland G800, G1000, VA76 all had 76 keys and again I'm reasonably sure pianist mode was available.
Going way back Korg i2 had 76 keys & there's probably been some newer models in between the current & back then.
My SD1 has 76 keys , pianist mode etc, don't know which of the earlier ketron models also had 76 keys.

Going to another brand you're going to have a learning curve,some of the top end keyboards have complicated operating systems. You'd want to make sure the styles for the other models suit your needs.

I must admit I found it strange that the dgx305 didn't have pianist mode especially since it's touted as being a piano. I used to midi it to my laptop & OMB and just use it as a controller & soundsource, rather than an arranger. There again, I only play at home.

Recently bought a psr1500, has some amazing functions, but unfortunately only 61 keys so I midi it to my digital piano.

best wishes
Rikki