lnbits is awesome. Braiins is asking for a lightning address for payouts which has a dependency on public DNS so I think your lnbits instance would need to be publicly accessible on clearnet. Also you have to run a lightning node AND lnbits. With Bolt 12 you only need the node and Tor only is fine. 

The only issue with Bolt 12 is that LND is dragging their feet on supporting it which is an LND problem.