Well, to update, I went. I realized that I didn't have near as nice gear as a majority of the guys there, mostly since my paychecks aren't as big it seems. But I live by the motto "run whatcha brung" and I did. I shot decently for my first time at that distance. I shot a 545-6X. I didn't come in last, which is a plus, but only one person shot worse than me...but hey, I'll take it.
I'll definitely continue going since it's fun, but I know I won't be competitive with most of those guys unless I sink some serious coin into it, which I'm not going to do. I enjoy long range shooting, but I enjoy shooting AR's a lot more, doing moving and shooting.