I received the replacement front wheel bearing and found out that you have to mount the free spindle from the inside of the front upright. I torqued the bolts to 100Nm, dont know what they should be.
The bearing fitted very easily so that was good.
I had to get hold of an M6x16 Countersunk screw to hold the front brake disc in place.
I had to re-tap one of the caliper thread on the upright, as the internal thread was caked in powder coat.
Got holf of 2 M10x60 bolts to secure the Willwood 4 pot calipers. Installing the brake pads was a breeze, and eveything lined up with the caliper mount points on the Marlin supplied upright.
I repeated the same for the other side.
The 5EXI now has front hub, discs and calipers !!! Excellent