One of the bigger projects for this makeover was to install new carpet. The 28 year old original carpet was just in really bad shape, and the insulation underneath it had gotten wet one too many times.
This is the kit I bought and I do recommend it. A molded kit might be better but it might also be poorly fitting and difficult to install and is a couple hundred dollars more expensive. For this price ($289 at the time of this writing), I can just install new carpet every few years and be happy.