Follow up: The Mitsubishi FX5U and GOT Simple won the battle. We have been shipping the system since 2018.
Our A-B rep was pushing the Micro850 and PanelView 800 7" to meet our specifications/price point. Mitsubishi was offering the FX5U and GOT Simple. We ended up choosing the FX5U over the comparable Micro800 PLC. One of the primary reasons was the development environment. Mitsubishi uses the same software from top to bottom of the product line. I would say our Mitsubishi combination is like programing a MicroLogix 1400 with RSLogix5000. The only thing I don't like is the basic Ladder Logic editor which looks and operates like it's from 30 years ago (and probably is based on their legacy support). All our PLC programming is in Function Block and Structured text and nearly fills the 64000 step standard memory allotment.