I successfully modded by Pelican LS using two WhiteLED.50deg.1500mcd LEDs. Here's the story...

RS VS. WHITELED
I originally bought two RS 276-320 LEDs. However, I compared them against the WhiteLED.50deg LEDs and found them to be slightly inferior. The RS LEDs have a bluish-green tint, while the WhiteLed LEDs have a light purple tint. I used Rayman Advance to compare them. Both LEDs seem to have the same brightness, but the bluish-green tint of the RS LED made the screen colors noticably darker compared to the WhiteLed LED. Unless I got a bad batch of 276-320s, I would recommend the WhiteLED 50deg.1500mcd LEDs over the Radio Shack LEDs.

THE ORIGINAL WIDE MOUNT IDEA
My original idea was a "super-wide" setup where each LED would be mounted not in the LED bay itself but at the top corners of the LS. However, I envisioned this concept before I bought any LEDs, and did not realize that if they were mounted anywhere besides the LED bay, the cover would not close completely. The great feature about this setup is that top-glare would not be a problem anymore. And if the LEDs were wide enough that side-glare was not a problem, the LS could be adjusted at any height without creating any glare! However, in my experimentation, I found that the LS is not wide enough in order for side-glare not to exist.

THE WIDE MOUNT
After soldering the two LEDs to the lead wire, I tried two different variations of positioning. Mounted side by side, the light was super bright, especially in the top middle part of the screen. However, the bottom part of the screen, especially the corners, was not getting enough light. I tried to aim the lights toward the bottom of the screen and toward the bottom corners, but the more I angled the lights, the more I lost overall brightness.

The second variation was to mount the LEDs as far apart as the LED bay allows, which is about 1/2 inch or so. The light was not as bright as it was when the LEDs were stuck together, but I found the light to be more uniform; the bottom portion of the screen, including the corners, was getting adequate light.

I decided to go with the second variation. With regard to the light fixture, instead of drilling holes at the two edges, I simply cut a rectangluar piece from each corner. I did this so I could adjust the angle of the lights after mounting them. After I screwed the light fixture back on and adjusting the LEDs to the desired angle, I dropped a bit of glue on the sides of the LEDs to affix them to the sides of the LED bay.

I will send Paul some pictures by the end of the week.

jjswift