Building my first custom Arcade Stick, Hoping to get some advice

So I decided to go ahead and build my first custom arcade stick. I found a nice tut here with tons of info that I've been reading up on: http://www.slagcoin.com/joystick/example2.html
I'll be going for that basic design.

So it looks like my ingredients will be:

1 SANWA JLF-TP-8YT JOYSTICK from focusattack.com
1 SANWA LB-35 MESH BALLTOP from canadian joysticks
10 30mm face buttons (8 face + start and select)
8 UILA RGB 5VDC LED LAMP
1 Cthulu MC PCB from focusattack.com
1 SPARKY PWM SMD LED CONTROLLER PCB from focusattack.com

~15' 20(?) AWG Insulated Wire
~30 Various Connectors
Probably will be using screws on the butt joints
The basic measurements for the materials:

(planning on making all wood MDF)
1 12" x 8" x 3/4" Wood
2 12" x 8" x .093" Acrylic Glass
2 8" x 1-1/2" x 3/4" Wood
2 8" x 2-1/2" x 3/4" Wood
1 10-1/2" x 1-1/2" x 3/4" Wood
2 13-1/2" x 2-1/2" x 3/4" Wood

SO...
My big questions are:

1. Where can I get some buttons that will look good with the Uila installed in them? I need the buttons to be screw-in I assume to work with the tutorial I am basing my stick off of. (I'm really uncertain if I even need screw-in) I have been having a lot of issues trying to find buttons that are clear(or at least similarto something like the seimitsu-ps14-k) and screw in; any suggestions?

2. Does it matter what gauge the wire is or is it safe to stay between 20-26 AWG?

3. Does anyone know of a good controller converter from PS3 to 360? I saw the chronus usb solution and was wondering if anyone had tested using it instead of going with the imp and 360 controller pcb.

4. Do you have any comments about the materials I am using, from the wood to the stick or any other comments or advise? Do not know much about different joysticks so I went with the standard looking one from focusattack... T_T such a noob...

This is my first post guys, thanks for the help in advance!