Hi Nate,
I was lucky to join this forum a few weeks ago because my dad has your diagnosis too. His surgery was today. I felt much more calmed after finding information about all this. You will too! This is hard but be positive! My dad didn't have insurance either but major hospitals have programs for uninsured people. We spent most of the past 2 weeks in the hospital looking for information, calling, visiting office from office. If you can go in person to apply for any of the assistance programs or state programs. If they give you any number call it right away. Don't hesitate to ask anything. You can look for this info in the hospital's website to have an idea of what papers you will need. Organize them very well so you can save time later. Print maybe 2 copies of everything and carry them with you in case you need to leave a copy in any office. If they ask you for additional papers bring them right away. Ask everyone everything. Ask, ask, ask, and then do what they ask you to do, bring whatever you need to bring right away. It helped in our case. It is all I know for now but I hope this helps you. I wish you the best.
Benfry