Great concept Zach. As you said there are many way to send wireless data. Fred Patton has recently proved the use of Raveon data modems to be a simple and powerful solution to sending ToD to the timing building.
A couple points for clarity, if I may.
The FIS does not allow for the wireless transmission of finish impulses. Photocells must be attached to the timers via wire.
You note the potential for missing impulses, when only sending the signal rather than data. That is always there lurking in the background and anyone who has tested this has seen it. While the impulses are missing at the finish, they are captured and printed at the start. This is the reason for the 2 timers connected to the start wand, to capture that data. There is no need for an EET, as the ToD tapes can be entered into the software as valid times. While this is not the most expedient way to time, it can be done and is valid without any further calculation.
You could always ski the 2 timers from the start to the timing building and download the data. If you could get past the line of parents and coaches looking for times!
Matt