Yes, there are some great alternatives to TrackIR out there, but even they were out of my budget once shipping and import fees were applied! I was not aware of how easy it was to do myself until a few weeks ago, so I wanted to make sure there wasnt someone else like me out there who could build their own.
Good overview of the process and Opentrack setup:https://forum.il2sturmovik.com/topic/34403-a-complete-guide-to-set-up-head-tracking-opentrack/
Good info on building the circuit:https://theairtacticalassaultgroup.com/forum/showthread.php?t=24794
If anyone ever has questions, feel free to PM me as well.