I changed out the 1030 two pieces of extrusion for a single 3030, it's much stiffer and easier to level with this mod,, and if i alter the Z itself i can get more cutting area. I just used a abrasive grinding wheel to slice the 8020 in half, my band-saw table wasn't big enough to accommodate a 380 mm cut.

Haven't finished the bracketing yet. I wanted to use the beefier ones i had for the 3030, but the hole ends up in the middle of the C-Beam

The lowest part of the Z actuator is what controls the useable cutting area height.. So i might look at making something to extend the plate down beyond the end of the actuator.