devilshaircut,

Speedplays are popular with road, track, and casual riders. You will not find them on sale or used in good condition for cheap. If you do you are very, very lucky. Just buy them at suggested retail and get it over with. Get them before you do your bike fit. They are part of the equation.

Bar plugs are cheap. You definitely don't need to order any. They are laying around the floor of any bike shop, just like valve stem caps. They come in any $10 pack of grip tape.

Get a $30 helmet from Performance on the way to the track.

Talk to Bobby about this stuff. That dude is fast. I'm growing my beard to be like him.