I bought my J34 the same place as the last guy and love it. He was great to deal with also and has good videos showing the packs. I got the spike camp duffle for packing and storing camp also. I have the Cabelas Extreme alaskan outfitter pack also and it is nice, but I like the eberlestock much better for hunting. I take the frame from the cabelas pack and keep it in the truck for packing meat out after the first trip with the eberlestock.
If you get the frame pack, it will be bulky and not real comfortable to hunt with. The beauty of the eberlestock is that you can drop camp, zip it up and tighten the straps, and you have a good comfortable daypack to hunt with ready to go. Take a few trash bags to put meat in and you can use the main mesh compartment to pack out some meat the first trip, while packing camp in the duffle.
I still like a external frame like the cabelas pack has better for packing heavy quarters. The eberlestock's design puts the weight further off your back and lower because it's made to pack a rifle close to your back. It's a great design for "one pack for everything" idea, but I think a frame pack is still more comfortable for packing meat. That's why I drop the eberlestock at the truck with the first load and use the frame for the rest.
I'd buy the eberlestock and then try to find a decent frame also. Don't forget to put plenty of bungie straps and cordage on the frame for securing meat, and add a way to carry water.