Check out the deal Mr. Muffin has on DCS.
https://ogrforum.ogaugerr.com/...help-you-get-started
Buy the Muffin's DCS WiFi Starter Kit - it comes with a Track Interface Unit (50-1003); the WiFi Unit (50-1034) and a copy of Dr Barry's WiFi Book - sale priced at $329.96. Buy it here