WiFi Router LTE Gigabit Ethernet

Looking for high performance WiFi ac 2.5/5GHz, LTE Modem, Router with gigabit ports (number not specified, but 4 should be enough), to be used in a LAB for heavy testing.

Basically I'm looking to an advanced AP to have full control of low level settings, with the addition of a modem LTE (used only for remote control) and some gigabit ports to connect LAB instrumentation and perform throughput tests (iperf) on a WiFi radio being sure that LAN is not a bottleneck.

Not a cheap device, indeed.

Any suggestion?

Thanks in advance.