First, don't even bother recording unless/until you have the piano freshly tuned. Seriously.
Second, pull out one side of the piano from the wall so that the angle between the wall and the back of the piano is about 15-20 degrees. This will help keep down standing wave buildup between the piano and the wall which can definitely muddy the recorded sound.
Third, remove the kickboard below the keyboard. This is no big deal, it is made to be purposely removable for the sake of maintenance and tuning access. It comes off and goes back on with ease.
Fourth, now expiriment with mic selection in either an ORTF-like near coincident or a wide stereo pairing with one mic intended for the lower 44 keys and the other for the upper 44 keys. Keep the mics close to the strings, only a couple of inches off of them. Move the mics closer to the hammers for a sharper and more honky tonk/western saloon sound, farther from the hammers for a mellower sound. Adjust for maximum balance between string sound and foot pedal noise.
If you're doing a more distant miking instead, walk around the piano while someone else is playing it (or at least banging the keys), somehwere in a radius of about 3-5 feet from the piano body. Duck and weave your head a bit as you move around, and find the one spot in that radius area where the piano soulds the best to you. Stick mic #1 there (expiriment with which one gives you the best sound you want). Possibly you might get a room mic grabbing stuff off the walls near the back wall if you have a good sounding room, and use that to add some natural verb to the front mic, but unless you have cathedral ceilings or something like that, I wouldn't count of that too much.
HTH,
G.