I'm a retired kayak fisho, so feel free to ignore me, but any of the yaks mentioned would be good. If I was going to buy another kayak, I would look seriously at the Predator PDL, but would want a trailer to transport it.
Pedals/fins aren't a problem in themselves, but yes, you do have to avoid rocks. Most boaties seem to manage it and a serious fishing yak will have a sounder/GPS. As far as I know, all of the drive systems on the pedal kayaks are retractable/removable for shallow water work and you can paddle them too if you really want to.
As for Stealth, bloody good kayaks and their offshore record is proven. However, I'm not sure a glass yak is suitable for a beginner. Perhaps with the right advice/mentoring/mindset it could work out OK, but plastic is more forgiving of the cock ups we all make when we start out.