So my wife can see her brother who is dying of cancer

We're just trying to raise some funds so that Sher can see her brother Bob, who is losing to cancer at this point and may not make it to 2014. We would like her to see him while he is still alive, but do not have the funds to send her to Missouri on our own. We went to see him last Spring and it cost about $2000 for all five of us to go. I am aiming for $4000 to help pay for her to go alone ASAP and to have funds so we can travel as a family to the seemingly imminent funeral.