I have adjusted components to what I plan on using, and have re-done the PCB. It is pretty small, 26x42mm. My first unit is intended to replace a cable from my monitor station to my in-ear monitor on stage, so plug in location is not a huge issue, but if the unit operates well enough, I will probably re-design the PCB layout again, with the intention of running a 1/4" jack out the center of the back, for the purpose of plugging into my guitar, to keep it tight to the guitar body. This particular piece is getting a 1/8" jack for headphones, and it may be just a whip out of it, I haven't decided yet. PCB screencap below, as well as the download links for the schematic and pcb for diptrace. As before, the DRC error circles are all related to the antenna. Next step is to have it printed out and attempt a toner transfer method with it. All those vias worry me though, I might not have a choice but to have it done from a board house. Scratch that, I submitted it to Oshpark just to see what the price was, and I can't argue with $8.50 for 3 boards, including delivery, so I now have boards en route.

Schematic

PCB