Campsites that accomodate 40' rigs

[daveinaz]

Our 3400RL measures 39 feet. I've been reading a bit about how many national and state parks can't accommodate rigs this big.

So, I'm just wondering, how many problems have those of you with longer 5ers had in getting spots in national, state, or county parks?

We really want to stay at national and state parks but now I'm wondering if we need to downsize before we even hit the road. And if we do go to something smaller, how much smaller do we need to go to get into most of these parks? 35 feet, 30 feet?

Thanks.