There's so much room to park a big rig, so yes from that standpoint. But I would use your common sense. Turn arounds can be tight and you will likely have to go out into the tall grass to maneuver/park etc. So if the road in looks muddy, the grassy areas may contain dips that are mushy, etc. If I were you, I'd open a satellite image and get the lay of the land before you go in. And yes, use the entrance by the towers/closest to the NP entrance.

You can take a circus in there...LOTS of space.. recommend ONLY coming in up by the towers which is the second entrance when coming from Wall.. the first on is ROUGH or was when we visited in 2020.. you can see the milky way at night when the moon is low or not out. very windy as well.. enjoy..

I’ve seen class a there with toads But war of the winds can be very strong. Most folks park parallel to the edge. DO NOT PARK CLOSE TO EDGE. We have a 32’ plus toad. Drive toad in separately as road is bumpy and there are potholes. The wind became very strong and by morning many folks had left - maybe during the night. With all of that said; the view is amazing!

It's been a few years since we were there but yes I think you will be okay.