Wouldn't a middle-ground option with MariaDB work better?
Upgrade MariaDB from 10.0 to 10.1, - let the dust settle, ensure all good with 3.4.8
Upgrade 3.4.8 to 4.5.4 - let the dust settle, ensure all good with 4.5.4
Upgrade MariaDB to 10.2 (or later)
You can probably tell I am a huge fan of "one change at a time" - I've lost count of the amount of times I've cringed when a customer (in my day job) has said "We plan to apply OS updates, then upgrade SQL, then make a firewall change, then upgrade the software you specialise in" 😄