Hold on! your getting some misinformation. A heat plate like you have is not like other heat sources for chicks. The chicks will raise up and put their back against the plate to warm up. Take the thermometer and chuck it in the garbage. Keep the plate height so the chicks can walk under plate and if needed they push up against plate. You adjust height as the chicks grow. That is why the legs on the heat plate have nice little adjustments for you. I hope you understand what I am trying to say.I measured the temp and it was over 100 so I'm going to raise the warmer.
If I have the big shavings, is it necessary to put paper towels in?
I to use wood chips and like to start with paper towels spread out under feeder and waterer. I will usually sprinkle food onto paper towel at first. The way you have paper towels setup in post #16 looks great.
Hope this helps.