ZyXEL VMG1312 B10D?
From A&A's web site:
The ZyXEL VMG1312 (VMG1312-B10D) is an all-in-one ADSL/VDSL router with WiFi and 4 network ports. AAISP started supplying these in July 2017, these are now the default router.
4x 10/100M ports.
Modem supports VDSL (FTTC) and ADSL/ADSL2.
WiFi is 2.4GHz, 802.11 b/g/n
Broadcom 63381 chipset
MTU 1500 when in bridge mode not possible yet, but we are working with ZyXEL on this. (2017-11)
I think that A&A supply it at around half price (~£25) if ordered with your broadband service. I don't know how well it works with ADSL, but is fine for VDSL, other than not doing baby jumbo frames in bridge mode. No idea how good its WiFi is.