Regarding your questions, I would like to reply as follows:
1. RC180 cannot be use with EZ modules. Only RC620 controller can be use.
2. I had send the complete pricelist to Khun Panida before. Can you please check with her? If not I will reend the file to you.
3. The price for 2-axis modules is about USD18,000. I think it is quite expensive so it is better to use LS3 or LS6.
4. Regarding GUI, I need my engineer Mr Wong to reply you on this.