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@Stev
Fortunately, we have no issues with knowledge and skills on the ESP8266. There are many boards and modules out there and all of them are "about" equal ... there are also communities and even free books on the ESP8266 which cover the majority of the area. So it doesn't really matter "which" ESP8266 one gets ... whether it is the ESP-1 dirt cheap or the more expensive nodeMCU at the high end ... all of them should work fine.
BTW, would there be anything gained from using something like MOD-WIFI-ESP8266-DEV ?