Great list, you've got it. doing a lot of the same thing myself her at my new home. The only thing I would add is make sure you can do decent vocals. That's more important than the latest model Arranger's sounds.

Just my 2c.

Good luck
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Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer