All I can say is that I'm almost speechless.
Please, you must find a way to have the blood gas test done. If you don't, I have to say, yes, you are watching her die. The meds Stormy would need are not particularly expensive, but in order to determine how many she needs, you have to have the blood gas results. With the Fanconi protocol, she could conceivably live a long and relatively 'normal' life. There are Basenjis with Fanconi who have lived as long as 18 years old, and been able to show, lure course, and be loving companions. Perhaps you could contact a local dog club that might be able to help you with the cost? Ask your vet if there are resources to help seniors with dogs needing veterinary care. Try every way you can think of, for Stormy's sake.