You say “ALMOST bolt on” … what is needed to do to put them on the '92-'96s? Seems the 15" tires and even 16"ers are getting more and more scarce of late … 
And, again, wires are DANGEROUS on anything XJ40-present, as has been discussed many times on here. The body weight is just too great, leading to a proneness to snapping of the wires … 
I do not consider the 1992 as bona fide facelift - all style bumpers, 3-speed TH400 transmission, inboard brakes.
What was provided by mew earlier applies to the 1994+ models in the US (1993.5 for the rest of the World)
:-))