it is not impossible to find one.. you just might need to persuade the owner to let go. trouble is, one that is for sale would almost certainly require a RM100k+ restoration. then there's the issue of road tax
There was actually a 1991 850i (A) for sale at Jag Classic Cars in Damansara Perdana a month or two back.
Only had 32k miles on the clock and supposedly, was fully serviced by BMW Malaysia. Probably sold by now. Was tempted but I already own a V8 and getting a V12 would be a tad bit too much .