Come on, grow your own hair!
It will still work at your age!
As for hiding stuff, when I was a younger, I kept some of my gear in the back of my old television.
Old unused PC could be a nice little closet too!
The same goes for speaker sets!
Also, get the wig you really like.
Otherwise, you will be spending more in the end by buying 2 or 3, before you get one that really suits you.