Congrats on your new purchase! I think you will love your 3100, having moved down from a large coach like you I have found the 3100 perfect for getting into more hidden spots that you just could not get into with a large coach. You will find a space for the most important "stuff" and the rest can stay at home. Welcome to the PC family.
I'm slowly working down to just what I need to carry and not what I would unthinkingly throw in just in case the world might end while on an RV venture.
Several things I had gotten rid of in the past, I could use now; but I'm not going to save much of my current excess-time for another garage sale.
I am impressed with the thought that PC has given to their small Motorhomes. There is a big advantage to building the same basic units year after year; and, unlike Lazy Daze,et al, continuing to tweak and improve them as the market wants and demands.