Boyd's is on Stock Island just north of KW and the closest commercial rv park to down town KW. We've looked through it, and it is nice but very close quarters. It will handle big rigs. It books up early for the peak season (Nov thru Apr) and expect to pay $100/night.
Only U.S. military (active duty, retired, 100% disabled vet and senior DoD civilians) can stay on the two USN Fam Camps on KW, and that is where we have spent winters since 2000. The USN camps (Sigsbee and Trumbo) can handle more than 500 rvs, but only 90 sites have hookups - the rest are dry camp with a two week rotation out of hookups into dry. We don't take a car but ride bicycles everywhere around KW.