7 year old taking college classes

So my 7 year old son, Ryan, is in the first grade and a week before his summer break I got a paper from his school stating that he had been tested and he is gifted in math and reading. he reads on a 8th grade level and tested as a 5th grade in math. he got invited to take a 4 week program at NKU university this summer where he gets to go to the college and take classes. I couldn't be more proud. you can imagine that this is a once in a life time oppertunitie that I do not want my son to miss out on so I have done everything I can to try to get the money to pay for his tuiton and I am falling short due to bills and my 4 year old with autisum. I am working full time and a full time student. the tuition pays for his classes, matierals, parking and an aid to help him to his classes since he is so young. please help me give my son this oppiurtunity time is runnin out.