@NeverDie I love the new 51840 (the one that does the long distance, the 832 is the High throughput chip) Please work with the 840.
I have the nRF52840 Preview DK, but have not fired it up yet. Still trying to understand how to code Bluetooth.
http://www.nordicsemi.com/eng/Products/nRF52840-Preview-DK.
SiLabs has an interesting Gecko BT5 chip as well.
http://www.silabs.com/products/wireless/bluetooth/blue-gecko-bluetooth-smart-socs