Is there any hardware which can consume connection from 3G/4G SIM, LAN Ethernet cable, existing low range WiFi and can provide it as wifi access point and LAN, both.
I am currently using SoftAP mode of WN722N wifi USB adapter. It delivers internet(via WiFi) obtained from any source(3G/4G adapter/LAN/another WiFi). It creates bridged network.
If its not possible in single device, recommend me combination of devices, with minimum cost. I expect it to serve 5 to 10 devices.