Grant my final wish. Fulfill a promise

I am going to attempt to raise money to fulfill a promise I made to my wife Ruby when I married her.  I promised her we would travel to the western and northwestern part of the United States to see places she has never been.  I have never been one with great money skills usually living for today and so over the years I never met my commitment.  At the end of October I was diagnosed with stage 4 Small Cell Carcinoma in my lungs and liver and that has a survival rate of 6 months to 2 years for 2% of those with it.  I have no intention of letting that be my future but at the same time I don't want to fail in my promise to my wife.  The amount seems large but that would cover the purchase of a used class c mobile home and money for gas, campsites, and food for at least 30 days that I would like to do this spring if this is successful.   I don't want to burden my sons for the money especially not knowing what the future will bring.  I have seen the power of the internet and a dollar here and there and I make my promise and she will have memories of us together one last time.  I have proof of my illness through signed diagnosis of 5 separate doctors if you want proof.  Through  my own foolishness I have wasted more than this and your support in making my wish will mean so much to me.  If you can find it in your heart to  help I will be forever grateful as I am sure Ruby will  be as well  Thank you so much