Depending on how ameanable you are to 'going farther' you cant go wrong with the Isuzu dealership in Monrovia. I sound like a broken record on this subject but they have always done good work. Many of us here on the forum take our VX's to them.
If you do decide to inquire there, ask for service rep Dino - And deal only with him. Take your truck when Dino and the Isuzu mechanic, Mike is there.
Yes, it is a dealership so you will pay more. But I think its important since you just got your VX that it should be looked over by wise eyes.
Congrats and welcome to the forum!