Would this combo work?
https://www.amazon.com/RadioMaster-Control-Crossfire-Starter-Version/dp/B0B429XWYV/ref=sr_1_6?crid=2RR5RCU67T268&keywords=elrs+internal+transmitter&qid=1668314375&sprefix=elrs+internal+transmitter%2Caps%2C94&sr=8-6
https://www.amazon.com/TBS-Crossfire-Nano-RX-SE/dp/B079WW2YG5/ref=sr_1_1?crid=2H5NTE17KC550&keywords=nano+crossfire+receiver&qid=1668314588&sprefix=nano+crossfire+receiver%2Caps%2C114&sr=8-1
At this point, I'm less worried about cost savings and more about building a build with the near-latest tech. Thanks for the input!