We are also Elks. That being said, we find most of the Lodges are busy and difficult to get into especially during the fair weather months. I devised a spread sheet on my laptop that breaks down "ALL" RV resorts/parks by miles from home. Such as resorts within 100 miles, 100 to 200, 200 to 300 and over 300 miles away.
DW and I usually have 2-3 spots picked out and possibly reserved before traveling 3-6 hrs and then getting turned away. Most all Elks lodges have minimal hook ups and maybe a dump station as most are older. The best thing to do is use RV Park Reviews and have a couple or three options in case you are turned away because they are full. We also belong to KM resorts, RPI (includes Naco-1000 trails), Good Sam and KOA. There's no way I'm going to drive for hours and be tuckered out and NOT have accommodations. Been there, done that.