Save Pretzels life (medical help)

Hello, my name is Kika. Myself and my family have rescued and rehomed many cats, we have 8 cats currently. Our female cat Pretzel is in need of medical intervention for her teeth and throat. She needs to get her teeth removed as well as tumors in her throat. We have consulted the vets many times about her as her genetics are not the best, we have already put a lot of money towards her but unfortunately can't do it alone.

Every little help would be greatly appreciated! Any euro you can spare would be greatly cherished by us. We really worry for Pretzel and want her to feel as comfortable as possible.