Spitfire prop

Can I get a hub that lets me fit a Mercury spitfire prop on my 96 Evinrude 40hp? 

Not certain on the spitfire specifically, but generally speaking, many props are interchangeable with the right hub kit.

I recall buying a prop for my 150 E Tec, and the prop guy at the counter asked what make / model motor I was running, so he could get me the correct hub. 

Should be as simple as calling a prop shop / marina and asking.