Not at all, I do not like the classic car as an investment idea, Now for some marques it might well be the thing to do, to try and keep it original, garage it with dehumidifiers, trailer it to shows, but the thing about Landies is there adaptability and that was part of the design idea at the outset surely.
Who keeps a 747 jumbo jet original for example, they would all be grounded if they were.
Now there are some things I would not change, don't want a cat, electronic engine management and all that stuff, and that is so far as I will stay original, however if anyone wanted to restore my landie back to original spec it wouldn't be hard to do anyway, just a bit pointless