u/EmbarrassedAirline23

I have a home office network of three older TP-link APs a couple of managed Omada POE switches and some unmanaged switches of various brands. Right now I use an OC200 to manage them which was set up a few years ago.
Router is ER7206 with two 1 Gb Fiber and one LTE WAN links. First switch is a SG2016P, AP's are 2 x EAP225 and 1 x EAP115

I need a new outdoor AP to cover a storage field approx 100 ft x 200ft with 20 RVs and boats in. The AP will be at the edge with a max distance of 160 ft to any RV. The use will be for webcams in the RVs. What is the best AP for this? Does the OC200 manage all the new AP's?