Please help Shelly's husband and Son

This is my sister Shelly Kerr. She is a beautiful 32 year old mother to Cooper (1yr) and wife to Brandon.  Last February she was diagnosed with Stage IV breast cancer. She had barely given birth to their first baby boy before getting this life-shattering diagnosis. Cooper was born with a club foot and required my sister and Brandon to begin what would be a one year journey to find the right surgeon to fix his foot. In the midst of all of his doctor appointments, she was beginning the fight of her life. 
She started Ibrance (chemotherapy) and was able to stay local for the treatment. Shelly was able to still work while on this therapy and tolerated the side effects decently. This past December she underwent a total hysterectomy as part of the treatment recommendations to battle breast cancer. This was crushing as she would have loved to have several other babies and to have a big family. 
This past week Shelly was told the cancer has spread to her liver and she is not responding to the chemotherapy. The oncologist said that if she doesn't do any treatment at all, she could have around 6 months to live. 
Obviously doing nothing is not an option. But, we are at a point we could really use some help from anyone willing to help. Your generous donations will help with her travel expenses and the chemotherapy/immunotherapy expenses. 
She is going to transfer her care to MD Anderson in Houston. Her first appointment is February 8th, 2017. Shelly is also exploring alternative immunotherapy treatment. These treatments are expensive and typically require several weeks of therapy away from her family. The results appear to be promising for patients with Stage IV cancer. She is also beginning a new vegan diet that will hopefully give her body the nutrients she needs to continue this fight.
Access to care will be difficult as she lives and works in Oklahoma and is the breadwinner for their family. 
My sister is a determined scholar and has passionately devoted her life to veterinary medicine. With some help from our parents and many student loans, she was able to put herself through school. She graduated just 4 years ago from Oklahoma State University Veterinary Medicine. Shelly is an associate veterinarian in a small animal veterinary clinic in Bartlesville, OK. Throughout her own treatment and difficulty taking time off to care for Cooper in his recovery, she has still managed to take care of her animal patients with great enthusiasm. 
Shelly's main passion is spending time with family and raising Cooper. He is the light that has kept her going strong and makes her want to perservere and keep fighting. She is hopeful she will be able to see him graduate one day. 

As if this wasn't enough for one family to endure, Brandon's mother was recently diagnosed with ALS. Her condition is progressive and has been deteriorating rapidly over the last year. Shelly and Brandon are trying to help them as much as they can in the midst of their own struggles. 
This is going to be a long and difficult journey for my family. We would appreciate all of your prayers and any assistance you can provide. 
To be honest, I have no idea how much to ask for donations. I don't know how much the hospital bills and treatments have been thus far and cannot imagine the upcoming expenses. I do know that every little bit helps and will be gratefully and humbly accepted. It will also be tremendously appreciated. 

Thank you for taking time to read about our family.