Tekdeus' thread:
http://www.supramania.com/forums/showthread.php?t=50058
He says that given the $300-$400 it cost to make his setup and the fact that it was around 50 hours of labor: "I won't be making any more, sorry!"
89TurboPC's thread:
http://www.supramania.com/forums/showthread.php?t=54209
He specifically states that he will not make another set for anyone.
Clearcorners.com used to rework MKIII taillights, markers and turn signals, but they've since stopped... You had to send them a set to modify; the few people who did use their service sent in all new lenses which isn't cheap and then you add on the couple thousand dollars (literally) for the services...it get's painful fast.
The only remotely cost effective way to make a set that I can think of would be to buy premade LED rectanglar lamps like they use on rigs and retrofit the boards into our taillamp housings.
I'll dig through the other links I've saved, but unless it's worth over six or seven hundred dollars... you can probably safely forget it.