ummmmm....
If I was in your shoes, I'd prioritize and schedule a couple of the ones I wanted to go to. I'd sell everything that I own today. I'd put ads on craigslist of all the side jobs I can do for people. To get to the interview, I would hitch hike. Go to truckers stations and ask for rides saying you can't pay to get there but you will pay it forward in the future. I guarantee you can get someone to help you out and get there in a couple days. Peanut butter has a very high calorie/cost ratio so that should serve you well. Bring lots of blankets and sleep under a bridge. Wash your face and hair in a mcdonalds bathroom sink. Put on your suit and you're good to go. I literally think you could do each trip for as little as $15.
I really would do all of that IF I had to.
Most people aren't willing to do all this and that's fine but bottom line is if you wanted to go to some interviews, you could. You could call them and ask to push it back if you want to take the risk (probably very low risk), but why? Just make it happen.