Over the years I've done a lot of this sort of work. Having just bought a G70, I would have thought this to be an excellent KB for the job although, I find the learning curve a bit steep.
The styles can be substantially altered if they don't quite suit and the voices have very reasonable facilities to edit them if the need arises.
I find the KB rather heavy and very heavy when bagged or boxed for gigging.
I moved away from Roland after having the G1000, I tried all the Yamaha top end KB's having finished up with the PSR9000Pro.
All the best and spend a lot of time in the 'shop' with the earphones on !!

Kindest regards derekmiles@ntlworld.com