GameCube Audio Improvement Modifications

Hi,

I have been interested in getting my GameCube modded for Optical audio for awhile now, but lack the experience and free time to attempt it myself. Is there anyone skilled here who might be able to perform the mods if I were to mail them my system? There may be other guides for this sort of thing, but I came across the below two awhile back.

GameCube Optical Audio Mod (seems to require an additional MEGAudio Board)
http://www.gc-forever.com/forums/viewtopic.php?f=26&t=1236

GameBoy Player Audio Improvement Mod (Unconfirmed?)
http://www.gc-forever.com/forums/viewtopic.php?f=26&t=1703