Thanks for all the advise.It would seem that reconditioning what I have is the most cost effective and a hell of a lot less work,all of which I can do myself.So if anyone wants a Xjs6 frontend with power steer let me know,I now have a spare.LOL.
After talking to a brake company they feel the old drums will be fine once reconditioned and a booster installed.So back to the start.....
Anyone have any contacts for drum rebuild,bearing and suspention kits for the 39.Part outlets for this car are few and far between over in nz.Also will the old girls diff be allright running a small V8.
Thanks to PatS and all for steering me right.