Hello, here is what I can tell you about OKC , I live here, that be said.
Know some fellow club members that has stayed at currently at Roadrunner, they say they had no problem there. Park was leveled or part of it was during violent tornado awhile back. They rebuilt since, does not have everything that Twin Fountains has but also not the price either.
If want in Mustang OK there is fairly new park call Mustang Run, easy to get to short 10 minute drive West on I-40 from down town. They are set up similar to TF about same cost. Nice place although never been there sets off right I-40 so noise could be a issue.
There is a couple others off I-40 but don't recommend. Hope this helps.