Suggest Substitute For Oxycontin And Gabapentin For Neuropathy

I am currently taking oxycontin 40 mg 2x s daily and dilaudid 4 mg 4 x s daily and gabapentin300 mg 3 x s daily. I have stenosis, degeneration, tumor, sciatica, arthritis and what i believe is neuropathy in my right foot. My main question is that my ins will end July 31. I need to know alternatives that are affordable. I use goodrx but oxycontin is in the hundreds, right now I pay $20. I ve only been on the first two for two months but they aren t working as well. Its like my symptoms are rapidly worsening. But my main thng is affordability and comfort would be nice. thanks.