That's an awesome bike, Bill!
I think that going over everything that operates would be standard procedure, to just check that it is all safe before trying to ride it. Tires are possibly dried out, and should be checked.
For the engine, I'd drain the oil out of it and put in fresh. You can take out the spark plug, and use the kick starter to pump oil around the engine, or you could put it in gear with the spark plug out, and push it around the block for a little while, until you see that the oil is all circulated around the engine.
New spark plug, check the battery for probably 6 volts and probably Positive ground, and get familiar with that kind of system.
If it has a magneto, you might want to get some advice from some people here who know the details about the magnetos.
She's a beauty, and she deserves to be kept up well.
Congratulations!