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nRF52840 Development Kit standalone Long Range & Porting Code from nRF52832

Hello,

I started off with two nRF52832 Dev Kits, and have customized the UART Central - Peripheral example to send an array data from Peripheral to Central (no uart simulation).

However, I have realized that since I will use this in an Industrial Environment (measurements on Production of Precast Concrete Slabs), I will need the Long Range capabilities of the nRF52840.

Questions:

I need to perform long time tests of several Central - Peripheral pairs in a real Production environment before producing final PCBs.This means I will need to run for extended periods on a 3.6 V 2.2 Ah battery.

If I have understood the docs for the nRF52832 Dev Kit right SW6 (nrf only) can be switched to supply power to only the nRF52840 Chip.
Q1: Is this correct?
Q2: Will I still have access to the IO ports on the Header Pins?

Q3: Is the UART Central / Peripheral example (for the 52840 with SD 140) also available in "Long Range" mode, or do I have to make changes to enable Long Range?
Q4: What , if any, changes needs to be done to the UART Central / Peripheral example to enable Long Range?

Q5: Is there any Breakout Boards for the nRF52840 (like the Sparkfun Breakout Board for the nRF52832 )?

I advance thanks for tips and help!