You might find what you're looking for off this site. RECOMMEND you read the "About" section first, he's more qualified on matters North Korean then any of us will be. This site was very useful in the great P'okpoong MBT "discussion" from ~last Spring in the MBT section. You'll need to search the back issues (~20+/-) as he's discussed various weapons throughout amongst other topics, I just don't have the time at the moment as I've got other headaches to deal with during this critical upcoming week of transition at work-sorry.
http://www.kpajournal.com/
Marcello good to see you back, seems like it's been a while.
Regards,
Pat