Flexible Packaging Manufacturing ERP

I am setting up a flexible packaging manufacturing factory - there is still some time until we get to commissioning and operations. I am now at the stage where I am looking for an ERP that is well-suited for flexible packaging.
All orders are made-to-order (custom printed and size, though majority of the time we will use standard sizing).
I would consider myself a Small-Medium - one- 10 hour shift with multiple jobs in a day (4-5) but this could change and after a year or so will go into two shifts to scale.
Manufacturing process involves 6-7 steps. Any ideas or feedback to help me choose the right one?

Several raw material inputs are involved that can vary from order to order.
My goal isn't to just "have an ERP" and look cool. I actually need to benefit from it and remove redundant admin duties from the manufacturing floor so they can focus on producing quality output with low waste etc.

I also will have plenty of spare parts and maintenance parts which need inventory management.
Service and transparency is very important to my customers and as much transparency ERP can provide to my customer service team the better.

A couple I came across and actually will visit one of them at an exhibition tomorrow: Eproductivity software, and another Apstean.

Any ideas or experience to help me choose the right one?