I was experimenting with Lightning last week. The most sensible and painless setup without babysitting a channel is to use a PhoenixD_Server, route sats to eCash mints, and exit to another Lightning wallet.

The main Lightning stash is kept with the Phoenix Lightning channel, but Acinq doesn't know where the sats go if the first hop is an ecash mint and you consolidate later with different denominations.

... And yes, I don't trust the default privacy on lightning, that's why ecash is really good for lightning