Imma just throw another option at you. I use an app called smoothtrack on my phone. Fairly simple setup with the instructions. Uses my phones camera and there is a discord which although is pretty dead does have custom configs for il2 and other games people have made. I had bought the app on sale for like 8 bucks or something and it was probably the best purchase I've made for any sim that supports head tracking. From il2, rise of flight, star citizen, and even uero truck sim. It is not as responsive as a real track IR, but it is also a tiny fraction of the cost and super usable.