Social Security has a program called the “Plan to Achieve Self Support” (PASS) to enable participants to work and eventually decrease/eliminate their Social Security benefits.
Under the plan, a person sets aside money from their SSDI to save for whatever it takes to get them back to work. Money set aside from SSDI is no longer considered income so participants may qualify for other programs such as SSI and food stamps, etc.
The PASS program has been used to save for things such as vans, computers, child care, drivers, additional physical therapy, canine companions, training, etc.
You have to do two things: Develop a plan. Get it approved by Social Security. Call your local Social Security office or one of the Independent Living Centers for further details.