Does anyone know if the USB A charging ports on the 2018 models can be swapped with USB C in newer models?

Better question...where can I find a parts manual?

 

A parts manual? RealOEM.com is the only one I've seen

 

If you just need it to power your devices, it'd be simpler to plug this device into your power port:

https://smile.amazon.com/gp/product/B07RHSD9WM/

This device works well in my 2019 F60 Countryman as well as in my 2013 R58 Coupe. Ample power, and the option of using USB-C as well as USB-A, simultaneously. Best of both worlds.