As Tony commented I am selling a V12 out of an 84 XJS. It is not a complete engine but pretty darn close. All the details are in the ad
You don’t mention what prompted the engine going in for repairs so the one I am selling may not even come close to fixing your ailment(s) – but it costs nothing to check out the ad. You may be able to use this as a base and transplant items from your engine to “Frankenstein” a working unit.