Restore Dental Health: Urgent Help Needed

This is a hard thing for me, but here we go.

12 years ago, I had dental work done by the VA. He removed 11 teeth. I asked the dentist if I needed retainers since he pulled several teeth. He told me no, they won't move. They are shifting and moving. My appliance is broken, and my remaining teeth are too far gone to save.

I'm currently only looking for help with the bottom teeth. I have $2000 saved but need three more to get the work for the bottom completed. The top needs done also and will be around $5000, but the bottom is getting dire. The teeth are sensitive, and they wiggle, making eating very difficult.

Any help will be gratefully appreciated. Thank you.