I've just ordered one in fact and will report back once it arrives later next week.
Zen business broadband + line rental ADSL 15/1 (ish) on Draytek 2860.
Zen residential broadband + line rental ADSL 1.8/0.7 (ish) on Draytek 2860.
3 WISP broadband 20/10 also on Draytek 2860 (via Huawei modem) operating in load-balance/fallover mode with Zen.
There is also the Mikrotik RouterBoard SXT LTE which I would be stunned if it didn't do a bridge mode. It's designed to be mounted outside pointing directly at the mast, but can be powered using PoE, including 24V passive PoE as well as 802.3af/at