I originally fitted XF falcon balljoints to my 1000's control arms so I could use the XF stub axles and brakes etc.
I have since changed the top balljoint to HZ holden and have fitted HZ stubs and brakes. I machined up a tapered sleave so the bottom ford ball joint would fit the HZ stub. With the bottom ball joint it was easier to fit the ford item. The change to the HZ stubs allowed 15 x 6 wheels to tuck in the guards nicely ( my inner guards arent stock so I dont know how well stock would fit)
Steering is just a HZ outer tierod and steering arm machined to fit the 1000 inner tierod. Both setups need the steering angles modified to suit the 1000.

Both setup require the crossmember to be cut back and the bump stop moved inwards to the outer most crossmember mounting bolt. This needs to be done to allow clearance for the brake caliper when turning. I am sure Ian has a pic of his brakes which shows the same crossmember mod. ( I will look for it) Mine is in pieces now, so I cant take pics of it. I am also using a complete made up crossmember for other reasons.