I really want to build a Pyro suit/weapon and I play the Scout most often. I also have big feet. We are definitely the same person. I don't really prefer blue to red. I'm thinking of getting a red t-shirt so I can switch teams at any time.
The headset is made out of garbage. I got a set of broken ear protectors at a surplus store for a dollar. One ear-piece had already snapped off, so I didn't have to remove it. The microphone is two bottle caps and two straightened paper clips. It impairs my hearing, especially on the left side.
Your pants will be falling down all the time. Fortunately, it's the pant legs that fall down, which is less embarrassing than the alternative. I couldn't run and keep my socks up, which is really lame for a Scout.