1989 Jaguar XJS V12 Convertible With AC

I purchased the car a few years ago, driving it maybe 150 miles each spring/summer, putting it back into storage each and every fall/winter. For those in the know about these things, she’s a "survivor" (unaltered since new) and a "numbers car" (parts have matching numbers, indicating it's all original).
Convertible top and antenna motors both operate well. Original manual in its British Racing Green leather case.
In this year, she passed inspection. In full disclosure, the A/C may need a boost (I haven’t recently tried to use it) and two of the Pirelli tires should probably be replaced in the next year. The under-hood insulation has an area where, years ago, some was chewed away.
Now for a wrinkle that will further help make this a real deal for the smart buyer. While the odometer shows 24,320 miles, the replacement title I just ordered (I’d lost the original a long time ago) strangely and surprisingly shows 25,240. As I don’t have the time to investigate whether this was simply an entry error when I bought the car (I recall it then having around 21,000 miles) or if the odometer might have been replaced, to be fair and conservative, I’m adding the 24,320 now showing on the odometer plus the 25,240 showing on the title which, in total, would put the car's mileage at 49,560. Still very low for a vehicle of its age.