Shortcut to Copy SELECTED Object Modifiers (Multiple) and Paste Instances/Copies Onto Another Object

I've been looking around and have found similar scripts but nothing quite like this: I think it would be EXTREMELY useful to have shortcuts to copy the _SELECTED_ modifiers from one object and then two more shortcuts to paste the modifiers as either instances or copies.

That's the basic idea. I know a little but not enough to create this script, especially when it comes to copying the _selected_ modifiers.

Any advice would be GREATLY appreciated! Or a link if something like this already exists!