If you want to give it a try, you can grab the “flotilla-stretch” file from: https://github.com/pimoroni/flotilla-offline
On your Stretch Pi:
sudo apt install libboost-system1.58 libboost-filesystem1.58 libboost-program-options1.58
git clone https://github.com/pimoroni/flotilla-offline
sudo cp flotilla-offline/flotilla-stretch /usr/bin