So I have been experimenting and I have figured out a way to make candy frames using standard deep frames (instead of having to build my own frames). I place tinfoil down on an old bottom board and lay the frame on it. I roll the excess tinfoil up around the edges of the frames and clamp scrap wood against the frame (this holds the tinfoil in place when the candy is poured in).
That is it! It works pretty well. After some practice perfecting the procedure, I am able to get candy frames that weigh between 7-8lbs.