I kind of like how the system for currency actually makes sense. Using scrap metal to upgrade the mech makes more sense then paying some guy money to do it for you.
In order to make what you create your avatar, just take a partial screenshot of the picture, then load that file as your avatar. + so people can know about this.
Ideas: Make shoulder pads. Make armor stands trigger in the same way as heads. Add more tech stuff so I can make better cybernetic enhancements. Make opposite of black hole that repels everything near it.