A Stroller for Bennett!

Bennett was born with a chromosome deletion, he had a stroke at 1 and brain damage from hypoglycemic shock when he was 2. He has a seizure disorder and is completely dependent on a caretaker (me) to meet his needs. I currently lift his 70lb wheelchair into the back of my explorer and put him in a car seat. Getting equipment takes a lot of money and time and Bennett has 2 other brothers. Mom is stretched pretty thin, and the cumbersome wheelchair is very hard to physically manage. Any help would be appreciated!!