As stated, do your own. It's not complicated. And, you have control of what products are used.
You actually don't want the dealer doing your 50 hour service. Because, the same kid who missed a bunch of stuff, when he prepped your tractor, just missed it all again when he did your 50.
A person with a vested interest in the process, will always be more willing to take the time to check everything thoroughly. It takes time to check every inch of hose for rubs, and chafing. I'm willing to bet you, it wasn't done.
Everyone is here if you have questions on how to do your own maintenance in the future.