A Louisiana Trip of a Lifetime

This is a once in a lifetime trip for me, and I'm unbelievably excited. I have the opportunity to go to Shreveport Louisiana and work as an extra on the film 'I Saw The Light' with my favourite actor Tom Hiddleston. I'm very lucky and very excited to do so, but in my preperations I've encountered some problems.
My car is fixed now, and it costs more than I originally was told and anticipated. I have to dig into my funds for the trip to pay for it, and my backup vehicle is now broken. I need to get tags and insurance on my car so I can get to work. My paycheck wont cover it all, and I won't be able to save up the money I need for my trip again, at least, not in the time I have left before it.

This is a once in a lifetime opportunity and I really don't want to let it go. I'd really, truly, appreciate some assistance. Thank you.