Please Help My Research On King Arthur

I'm Rachel, a struggling college graduate with a degree in English. I have been obsessed with the Arthurian Legends since I was a child. As I've grown, so has my interest in researching these legends. I hope to, one day, be able to write an accurate screenplay or novel, with my findings. However, my research in the United States is limited to books and online references. My dream is to visit the sites where these legends were supposed real. I have found a tour called, Avalon to Camelot that would take me on over a week's journey to visit most of these places. In US currency the tour alone costs a little over $3,000, and I would still need aid for the flight and food. Please help me achieve this dream!