Does anyone have EDA schematics for a radio or a surface-mountable sik radio module?

Hi there,
I'm trying to embed a sik radio in my AUV robot for long range telemetry in a compact size. I'd love to embed onto my custom-pcb. Ideally I'd love to buy or find an smd radio module I could mount to the PCB. I could also build one into the board including all the SMD components but I can't find any schematics for the hardware. Is the hardware open source?

Id love to buy a module like this, that would be the easiest: https://dwmzone.com/en/data-link-rf-module/135-1649-3dr-radio-telemetry-433mhz-868mhz-915mhz-module-kit.html#/23-center_frequency-915mhz/653-type-3dr_module

I can't quite tell if this store is selling the raw board and their shipping is quite insane.

The issue names no source file, test, or entry point. Start by checking the repository's hardware documentation and the linked module listing to determine whether SiK schematics or a surface-mountable module are available; done would require confirmed information about the hardware design or a suitable module.

Written by the indexing model from the issue text.