the hubs will just bolt on, the shafts...... hmmmmmm....... cant remember!
im 99% sure the drive flanges are all the same size in the hub.

www.fordsierraclub.co.uk or ask Dojj

p.s 4x4 (XR or RS 4x4) diffs are 7in same as your estate.
then you can build it all up with estate stuff, Only the wishbones and shocks/springs are different, beams and diffs are identical.

shafts interchange accordingly