HOWDY! as someone with experience in both products, I feel you've made a great choice!. Bridging can be problematic, however, it can save costs and be reliable depending on factors like Line of Site, power, quality of cabling, weather, etc.
As someone who's been to many Campgrounds, I can tell you I work out of my Travel Trailer quite a bit, and there is nothing (for me at least) more frustrating than Bad Wi-Fi.
I quickly looked up low voltage companies in your area and didn't find much, Looks like you've got a few electricians though, and they may be Certified with various Wi-Fi products, and or good enough with the installation of these products to offer guidance or suggestions.
my question is this, are you planning on radio'ing for all 73 acres? Do you have RG6(coax cable) pulled to these campsites already? If so, you might be able to save your self quite a bit of cash.https://webresources.ruckuswireless.com/pdf/solution-briefs/sb-docsis-c110.pdf