Handicap Renovations for Troy

My brother Troy is a quadriplegic, confined to a wheelchair, and has been for 14 years. During that time my mother has been his caretaker. Last year she was diagnosed with cancer. After her treatments failed she has been on hospice and can no longer adequately care for him. I've been granted guardianship of Troy and look forward to him moving in with me. However, my home is not handicap accessible. I've reached out to several companies that do the modifications that he will need to be comfortable, like sidewalks, ramps, lifts, bathrooms etc. I've gotten at least 4 bids for all the necessary accommodations hoping I could get the overall cost down. Since that seems unlikely I'm hoping and praying I can raise some money to cover at least a portion. Thanks in advance!