Score! Salvaged pine flooring

Shayne and I stopped by the Habitat for Humanity ReStore yesterday to look for a "new" front door. We didn't have much luck with that, but we did find 2 boards of antique pine tongue-and-groove flooring that match our floor perfectly! The best part is that they were only $1.25 each! The boards aren't too long, maybe 4 feet, but they'll help us on our way to patching the living room floor where some big heat vents once were. Note to self and anyone else who might read this: patch the floor before refinishing... That wasn't really a feasible option for us, since it's taken me this long to find matching flooring locally. I probably should have just ordered some from an online salvage store, but oh well. I was also hoping to find registers that fit the opening that match our old ones, but that hasn't happened either. Just more proof that I really have no idea what I'm doing.