I've had my PA4x76 for 8 years, but at my age of 76, the 37 lb keyboard isn't getting any lighter.
I recently purchased a PA300 from Guitar Center and it sounds great, has the familiar Korg OS that I've used since 2008, the fantastic songbook feature, and at 18 pounds it's easy to carry to jam sessions. It can read all of the microarranger styles you have.
Marco Parisi has a great demo on youtube
https://youtu.be/7k1Sfq-49MU?si=qcWaZO3wAYasYS34Guitar Center gives you 45 days to try it and returns are never a hassle.
Duane