sure if it is an expensive Maserati engine. But sitting with dead old oil either has or hasn't rotted the bearing shells. You cannot know without taking it apart. IF you are going to take it apart, why are you starting it?
If it isn't full of water then you are not that different from starting it from an oil change, and if you have those serious doubts, you shouldn't be starting it.
Change the oil, check the coolant to make sure its coolant not dust.
Starting a long dead car is basically a small piece of disrespect. You are betting it doesn't throw a rod in the first 10 seconds, but kind of don't care if it does.
That Elise in that guys yard in florida for 10 years, hell ya, I'm checking the oil and throwing the jump pack on it. Toyota motors are a dime a dozen.
Even Lotus twin cam, cheap lower end go for it.
That Turbo Esprit or Maserati Merak, matching numbers 63 Vette, yeah, think we are towing her home and taking the long way.
Mystery oil is a great penetrant, so absolutely squirt it down the bores, then wait and follow with oil.
As a side note, the money he is talking about for a twin cam rebuild is crazy town, hell a new Ford block is less than 2 grand on your doorstep.