Here is a Kiwi color GBC that has been front-lit and has had a new screen cover installed(still has film on). This GBC also has translucent green buttons, d-pad and power switch from kitsch-bent. It can be purchased here http://tinyurl.com/kvg2wcj $60 plus $8 shipping, ships priority with tracking.
Just received some stock of glass lenses and let me tell you these are really nice, they definitely add that extra touch to the GBA! They are available here http://tinyurl.com/kv3of8v for $8 plus $4 for shipping. These ship priority with tracking.
Just a brief comparison between a modded and non modded GBA.
Backlight kits available in a week.