SCB will force close all the channels and will take a long time for your 2y old node to scan for on-chain funds. After recovery (of funds, not the channels!), you will be better off to start a fresh node with a new seed/birthday. Backups are trivial to automate, but don't count on them to save your node. Until LND natively supports postgres instead of bolt database, and you configure live replication to another disk, it is risky to route frequent payments.