I miss calculated the clearance for the front magnet holding the boot. I didn't think the spindle would go high enough to hit the gantry, but it did by about 1/2" from the top of the travel. I cut the magnet tab off and relocated one on each side back far enough to clear. Everything fits now, snug but everything clears. I wanted to keep everything inside the gantry to keep it all out of the way. I have a few more parts to build for the vac system & then I can tear the CNC apart to start installing all the update stuff.