HDSLR Rig help

Nick Posts: 4
edited August 2011 in Practical Filmmaking
I'm looking for my first rig, and I was thinking it would be a good cheap solution to custom build my own?]
I was thinking
-Cowboystudios shoulder rig
-Manfrotto Quick Release
- Rod Clamp
- 12 inch Rods
- Cheese Plate
- 2 handles
This is just for starts
I would Later add Matte Box, Follow Focus maybe toss out the Cowboystudio mount.
But my question is what are the cheapest 15mm rods and cheese plate? And best place to order them from