I think the patent for Inspire is held by a US company, and they don't want to slash their profits. I could be wrong though, you can research it. But that's based on Galleri Grail not allowing internationally licensed doctors to write a script to get their testing done, jaja! I would consider Inspire, but I don't think there's any proof of how long the device lasts before it has to be replaced, to justify 50K. Long term studies are always best.
That's why I use a MAD. It has failed me recently, but it seems to have lasted over 6 years without issue. Paying over $1,800 for a piece of plastic is a total ripoff, but if you have mild to moderate OSA, they tend to work. Which is why I want to find someone in another country that will make me another for a reasonable price. The link below is the manufacturer of mine, but you have to find an orthodontist who will mold a cast of your teeth for you.
By the way, if you have central sleep apnea, instead of obstructive, then the only effective treatment is a BiPAP, which is different than a CPAP. BiPAP machines are more expensive than anything else. Unless the CSA is caused by things like medications, which you might be able to correct with lifestyle changes, such as switching the meds or avoiding alcohol.
OSA is typically only associated with jaw / throat structuring and obesity, though it tends to get worse with age.
https://somnomed.com/en/patients/products/somnodent/