Anybody in Missouri recondition used HV Hybrid batteries. Preferably central Missouri. 2004 Prius Gen 2. 68,000 miles.
i don't know how to quantify the amount, but you can certainly find plenty of threads here, with info and results.
Assuming the rest of the car decent, at 68K I think I would just put a new Toyota HV battery in it. Olathe Toyota has had some of the most cost competitive pricing on new HV batteries FWIW.
At that low miles I would swap in a New pack and move on. You'll have it long enough to spread the cost over many, many years.