Yes, but a hotel costs about 100 euro, last lem micael (KL79) from france rented a house for the weekend this was cheaper than a hotel. Maye you could all share a rented house.
Transportation is easy, from schiphol airport the train brings you to amsterdam CS in 15 minutes, from there a bus will leave every 15 minutes to the venue. Costs about 15 euro.
A taxi will cost you 50 euro from schiphol to the venue.