Bike fit isn't exactly rocket science. It doesn't really require expensive equipment and it doesn't have to be done by experts. Sure, it's cool to pay someone to fit you for a bike, but it's not that necessary. It makes more sense if you are into competitive cycling and are buying a whole new bike and every ounce of performance matters. However, to get you fit to your existing bike all you can do is to move things around, maybe replace a stem and most people should be able to do that themselves.