I wish it was a vacation!! I need one!!
Really sorry I waited so long to answer, I have been completely slammed with Porsche gearbox work and doing a conversion on a G63.
I wish I had a good answer for you on weather or not we have something for the older G's! Being that I am only a distributor for LeTech products here in the US I kinda have to do what they tell me to do, and currently they are telling me we cannot do Portals on anything older than a 2007! They do not understand that here in this country we take care of our old cars and have a bond with them that will allow us to actually spend a bunch of cash on them to make them cool!
I will keep working on the guys in Germany and tell them they need to do a "vintage" Portal kit for a reasonable price.
Andreas Lennartz will be at my shop in June and I will for sure bend his ear about this subject and see what I can do face to face.
Keep checking the forums from time to time, as soon as I have some news for the older G's I will be sure and post it!