John Palmer just said the same thing on a recent Brew Strong show, that he bought a freezer and when he got home he noticed that the shelves were the cooling elements and could not be removed! He said he gave it to his wife.
I have a chest freezer at home, It's similar to this one
http://www.ajmadison.com/cgi-bin/ajmadison/DCFM289WDD.htmlBut I think it's only 40 inches long.
I am a 5'4" woman but pretty strong. I bought a carboy harness at brooklyn Homebrew, to help me left my carboys out of the freezer. with the harness you have more places to grab and hold and it's much easier. I have not done a full 6.5 gallon carboy yet but I am doing fine with my 5 gallon carboy. I also hold onto the carboy handle since it did slip out of the harness once when I did not put it on correctly.
in my freezer one issue is the compressor takes up about 30 percent of the width, creating a shelf. I can fit a regular 6.5 gallon carboy in there, and then maybe a 3 gallon carboy on the shelf and that's it.
I have not brewed a lager yet but I am looking forward to it someday soon.
The photos online don't show you how much of the space is taken by the compressor.
Otherwise I am happy with it, I use it to keep ferment temps low, to cold crash a beer, and for beer storage when I am not fermenting.
One interesting thing is that when the beer is fermenting strong, and i open the freezer and stick my head in to check the fermometer, my eyes water and sting. I guess it's from all the trapped CO2.