Looking for a 12-24 VDC PLC to Control Two 48 VDC Motors

I'm looking for a PLC, suitable for a hundreds of deployments in a office setting. I'm hoping people will review my minimum requirements, and offer suggestions.

1) Control two 48 VDC Motors that are reversible - reverse through a separate 12 VDC Contactor Relay connected to PLC outputs.
2) Operates at 12-24 VDC.
3) Four Relay Outputs 10A, Eight Analog/Digital Inputs.
4) Programmable via Windows based IDE preferred - Linux/iOS will be considered.
5) Ladder Diagram will be the primary PLC programming language.
6) Micro programmable so that enhanced logging, reporting, and communication techniques can be used. Any micro language is fine.
7) Ethernet (remote) configurable, updateable.
8) Suitable for office settings - dry, dust-free,
9) Reliable - proven to work in thousands of installations.
10) Reliable supplier with excellent service support.
11) Price point around $200/unit in MOQ of 10.

I've already evaluated the Arduino Finder OPTA - it satisfies all tech requirements, but does not satisfy items 9 & 10. I'm willing to consider arguments for OPTA, from people with first-hand experience.

Thanks!