I have an area to mount rails for my Z axis of 240 vertically within 200 accross the plate.

I'd basically just like personal opinions on which you think would be best to use in my situation.

I'm thinking of using 2 rails for the Z equally spaced about centre line of the plate, with the centre free for the ball nut. If it helps at all I am also planning to mount a gear o'end the ballscrew, which will be connected to a pulley belt, which will be connected to the stepped motor mounted upside down inline with the centre of the gantry and inline centre of the z plate.

I'm unsure on whether to use fully supported rail or the profile hiwin rail for this.

Please can i have some help, ideas, suggestions?

Thanks