hmm, looks like the MK3 mount setup must make the lump sit higher then! mates abf had no bonnet clearnace issues on the MK2 mounts. Oh well!
As for the UJ which end is the problem, did you not have PAS before hand? I know the MK3 UJ will work with a MK2 column and a MK3/late corrado rack, perhaps thats what you need?
as for the pin, I think you need to take a piccy, or I could send you my ABF wiring diagram which shows you all the pin numbers plus has a pic of the actual pin layout on the plug