Nintendo switch and games for Jaylen

My 13 year old nephew has just been diagnosed with stage 4 Soft Tissue Sarcoma and is going to be in hospital for the long haul. 

I would like to get him a new Nintendo switch, protective carry case and as many games and accessories as I can.

He has a long and horrible journey of surgeries and tratments ahead of him and I would like to provide him with something that may help take his mind of the pain and sickness and help him through the bad days.

Any help would be greatly appreciated. Thankyou.