MIne's roughly 1200 x 1300.
For the X, I used 2 x HGR15 linear rails, 3:1 rack and pinion drive, NEMA 23
For the Y, I used 1 x HGR25 linear rail each side of the table, 5:1 helical rack and pinion drive, NEMA34
If I did it again, I'd just use 1 x HGR25 on the X as well