Solved it. In case anyone is trying to repeat the incident, the character appearance files are saved under My Games (for Windows 7, at least), at the top of the FFXIV ARR folder. If you're transferring a character saved in the base game to the benchmarker to do what I'm doing, then you'll have to adjust the name. It should be "FFXIV_CHARA_BENCH01.dat" possibly replacing '01' with the proper numbers as needed.

From what I understand, the main game will read the benchmark files just fine, so they can be transferred to the main game without issue. If there is an issue, you should be able to just rename them as "FFXIV_CHARA_01.dat" or the like. This way, I'll be able to get all my character creatin' done before resubscribing. Huzzah, and hope this info proves of use to someone else.