Preston's Trip to Carnegie Hall

Hello Family and Friends!! Preston is doing great things besides being a Honor Roll student he has took an interest in singing.  Along with his audition to Americas got talent he auditioned for a solo at Carnegie Hall in New York and as a result he was selected as a finalist!!  
I want the best for my son and I don't want to hinder him in reaching his goals. The cost of the trip is expensive. The audition itself was $295, and for the chaperone,  music pieces,  food, and hotel stay is $1800.  Plane tickets not included. The trip is from 22-26 June. We would appreciate any help. This is a once in a lifetime opportunity that may prove  itself as a stepping stone towards his future.