I'd say lookout for a ZTE MU5001 on eBay. I checked on sold items and there was some going for £120. It also has a ethernet out so you don't need to mess with tethering.Yeh, I don't like the sound of the USB 2 slowing things down since I can get 800mbps on 5G in my loft.... My hunt for a sub £100 5G router continues.
that being said, if anyone on here wants to make me a cheeky offer on one, your more than welcome to...