You wanna trade them AND you want to be able to short them... I am sorry to be a bearer of bad news, but this is a little bit of a tall order, to put it mildly.
Well, normal bonds aren't really traded on exchanges, per se... But these PIK bonds are definitely not traded like normal bonds, to the best of my knowledge.
Do you have an interactive brokers account? If you can't find the bond, you might be able to call them and see if they can get access to it. I know they have a note on their site saying for clients with specific needs to call their bond desk as they can source specific issues.