Being a LHD, it would be very attractive to the European or North American market especially if its fundamentally original.
Sorry to hear that health is the deciding factor after all the obvious effort. Were I in your position, and didn't want all the grief of dealing with tyre kickers, I might be thinking of selling it through a specialist dealer on a commission basis. Let them store it, advertise it and do all the aggravation. Its also probably a bit mentally easier than seeing people pick holes in many years of hard work. If those same people get wind of why you want to sell, that puts them in a stronger negotiating position.
You don't say where you are located, but I may have a suggestion of somebody who might be worth discussing this with. If it is sound and solid and original with documented rebuild history, then this has significant value. If you want to discuss, maybe send me a private message?