Retrofit babyplast injection molding machine

Hi everyone, I'm thinking about retrofitting a small injection machine with a new plc+hmi. Totally new in the plc world, I have a lot of projects made with esp32+relay shields but never even tought about plc. Assuming it's a personal project I would avoid axpensive software interfaces and possibly expensive plc and hmi. Also as today the machine is three phase and I need to convert at 220v.

The machine has many pneumatic actuators, servo motors and an hydraulic pump. Also needs temperature a temperature control and management for the extrusion unit.

I'm seeking for any kind of advice