Seeking shipping cartons

I have a need for two shipping cartons for Levinson 436 power amps.  Will pay Actual Money™ for them AND all shipping costs.   If you've got but one, I'll still be interested. 

No crushingly immediate need, so if you happen on this post at any time in the future, shoot me a note.  If I've acquired them, I'll respond right away.  If I haven't acquired them, I'll respond even sooner
Did you try calling the company?  That is the best source for proper shipping materials for any serious component.

I called Levinson, to see if they'd sell me shipping cartons, after a respondent suggested I do so.  They have none. Discontinued products do not interest them at all. That came as a surprise, but there it is. :-(