Back in the 80s, a Mercedes 190SL was considered pretty much junk. I started looking to buy one in the 90s. I saved up to pay a reasonable amount on the car in the late 90s. Now, it is worth 3 to 4 times what I paid for it. Unfortunately much better than most of my other investments since then.
The middie will be a collector some day, and numbers matching is the way to go. As stated before, there are few middies that haven't been hacked. Store it you'll be happy you did.