I've raised £500 to Help our dog Kai get chemotherapy for mass cell cancer

This is for Kai.
Kai is a 6 year old Staffordshire Bull Terrier who we have had as part of out family since six weeks old.
He is the most loving, caring and loyal of dogs you could hope to ask for. A big brother to our four year old son, Kai has always been an integral part of the family, and one we cannot bear to think about losing.
Around three weeks ago we noticed a small lump on Kai"s hind leg, and also on his stomach. We contacted the vets who booked him in straight away. Tests were conducted and the decision was made to operate on both areas.
Kai went into surgery and under General anaesthetic had both lumps removed. He recovered well from the operation but further tests to the lumps removed revealed they were mass cell cancer, and not all of it could be removed due to location.
Today I am setting up this page and ask for any help possible with allowing Kai to undergo a specific chemotherapy to try and destroy the remaining cancer cells.
We understand as a family that it may not be successful but we want to give him the best chance possible.
Please, give what you can.
Kai x