Summary

Arm for ESP32-Cam and socket for 4040 Aluminium Profile.
Hole for the OV2640 wide angle lens.
The Case for the resistors for connecting to board to Board (Mine are connected to RX3 and TX3 at BTT_TFT35_E3_V3 is not include.

Wiring: https://github.com/luc-github/ESP3D/wiki/ESP-32-CAM
To use the DHT22 you can steal it direct from the Chip. Pin33 (the red / blue LED)

Edit: Cover for external antenna added:
For an external antenna you need to change this: https://randomnerdtutorials.com/esp32-cam-connect-external-antenna/