Land:
The best we have been able to come up with for other clients is the University. They can do lactate test on a treadmill that will give a good sense of your training zones. I do not know of anyone there that does the full Metabolic Efficiency test. Here is a link to the page with the test you want to get.
https://healthcare.utah.edu/wellness/services/fitness/testing/lactate-threshold.php
Scott