I saw that post on e-bay too. Great deal huh? So, I contacted him. This is the response I received:
"Hi
The reason for it being less costly than the rest is because you are paying for material and a little of my time and not the name that goes with it. I believe everyone should have a nice set of armor and not have to break the bank to get it. This armor is 60g just like the originals. The armor is styrene. I purchase the molds because of their connection to the TE line of armor. Once assembled it looks the same as the TE2 armor.
Thanks
Michael"
Now, I'm a total noob (except for research on FISD) but that response made me a bit suspicious. So, I did a search for makerofthings on FISD and came up with this thread http://forum.whitearmor.net/index.php?showtopic=8579&hl=
I hope that helps!