Can I bring in my own wood? I have a wood stove at home so I have plenty of wood . If I didn’t need to pay for it I’d rather not

If you bring wood from less than a 50 mile radius, it is ok. You must inform the park office when bringing in wood. Most people go by the honor code, and it is checked. You must burn all wood brought in, or take it with you when you leave.

I thought also if wood source is 50 miles or less from campground

The rule is in place to stop the spread of wood parasites/beetles etc. Kiln dried wood is preferred but it's a free country :)

Nobody watches it, does not check. So, yes.