Most/all vets around won’t do payment plans but will offer Care Credit which is a credit card you apply for. I use Grant Avenue Pet Hospital and they are pretty medium priced, but when I brought in my cat for minor issues and he suddenly died of a genetic defect he’d had since birth, they only charged me for his cremation and xrays. It was very nice. I would not recommend Thomas Rouse at all though. I saw him for my dog once and he was very condescending and rude. Every other vet is absolutely amazing though. When having a dog like a dachshund, I would really recommend pet insurance as they can be prone to back and joint issues. I hope everything works out!