How can I move things across dimensions?

I have some barrels with a lot of stuff in them, and I need to move them to my new base in a different Mystcraft Age. I have already tried Portalguns from the Portalgun mod, but they seem to dislike Mystcraft. I could normally move barrels with the Gravity Gun, but I can't since portals don't work. How can I move my stuff without disassembling the barrels? This is using the FTB Direwolf20 pack.