Yes, done it to something similar.

https://www.youtube.com/watch?v=M_VAXZbv6hc

has cost me around £3000 in total by now but only using steppers plus the cost of the machine. £1500 for the ballscrews as I went full hog with high preload and C3 accuracy. Also went with £300 worth of angular contact bearings to suit. Would have gone servo's if funds had allowed then.

Do not sell the DRO, I find it invaluable as you want to be able to switch between cnc and manual and also helps calibrate steps per unit.

From what I read the kit ballscrews are not as good as you are made to think, hence I went with my own ballscrews.