That is a good question. I have been wanting to get some plastics done and face the same issues. There are a lot of creative ways to raise money. Fundraisers, sales, bake sales, and I could go on. I don't know much about you but maybe your church, if you go to one, can have an event to help you raise money. I don't encourage people to get loans because that is just more debt but it is an option.
I wish I was more help but life is hard money wise and I think we all struggle with having enough.