Wow - great story and congrats on the awesome find!
Be cautious on those tires but sure, run 'em if just everyday driving. I wouldn't put 'em on a track or even AX but you should be fine for out and about; particularly if not subject to UV exposure which sounds to be true by of the storage method.
As for not addressing the IMS... be very careful saying that aloud or you'll be quickly labeled a vendor hater
Drive her in good health and definitely post pix when you have a chance.
Good luck
