I would get, in no particular order, wool socks, a pair of shin length knickers (Shebeest makes a nice pair), a windproof jacket or vest, full fingered gloves, toe covers, a headband or light hat. Arm warmers are nice to have, too. You can get by without a cycling specific long sleeve jersey. I'd go with a wool baselayer instead. Just make sure it's a wicking material.
How cold will it ultimately get in your neck of the woods? I wear my knickers down to about 50-55 or so. Below that, I wear tights.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher