I feel your pain [banghead] I got my RAS II just in time, but I coudn't get my PRI gear from MSTN either. They told me that the regulations are kind of shades of dark grey, and they can't risk their business over unclarified legal paperwork. The State department may change their position on this in the futur but no garanties.
However some suppliers may still ship them anyway, since there is some grey to this regulation some may be willing to try anyway <-- hearsay, don't quote me on this, rules are changing all the time.
Dorsai - This is what I found out with some research. As far as I know this regulation applies to the item and not to who exports it. Your custom declaration describes the items, the broker that the courrier uses will most likely not accept it if the 'description' falls into the prohibited item category. However, you are the one who describes the items, but if the package is verified you may be liable (don't know the penalties for this, if any) or at a bare minimum the items would be returned to sender.
IMHO these regulations are a broad attempt at controlling items that could be used against the US. Since thing have changed very fast in the last 2 years, the State department seems to have just "closed" the border on most firearm related item until they have time to evaluate each item for their real potential security threat. (I hope they will re-evaluate this regulation) Just my .02$ [soapbox]
State department if you hear this, GET REAL !!!
Just my honest opinion. Good luck Jerv.