3D Printer X axis

Sorry if this has been asked.

I am building a Cartesian 3D printer with a Heated bed 500x500mm from Wombot. I will use the C-Beam Linear Actuator Bundle for the Z axis but after some thinking I was thinking about using the Lead Screw Bundles for the X and Y axis.

I understand I can use a lighter belt X axis but I have read that the Lead screw setup should be more accurate? Is this correct?

I am thinking about 700mm for X axis.

So to my Question:

If I use the Linear Actuator Bundle Lead...

3D Printer X axis