Need help with transportation replacement

I am on Social Security Disability due to mental health issues. I didn't want this but it was necessary. So in order to feel as if I am at least giving back to a community I volunteer at parks on disc golf courses. After my second wife left my world fell apart I didn't leave home for 5 years. Then I began volunteering on these courses and my outlook on life quickly changed. I was always happy and in much better spirits my doctors said, "We don't know what you're doing to create such a drastic improvement but keep doing it I have terrible luck I have had 2 cars donated to me by the local disc golf community. The first blew a head gasket and the second just had an ash tree fall on it 2 days ago. I need reliable transportation to get to courses and work. Due to the terrain on disc golf courses a small 4x4 fits the bill best to get my tools around as I work. I am still paying one off that I got from a buy here pay here that ripped me off I barely had it over 1 month and a brake line blew nearly killing me in an accident had I not used solid judgement I would have gone through a guardrail at 60 mph to a 30 ft. drop off. I would use the funds to purchase said vehicle and continue to improve my mental well being while helping parks departments and making courses more enjoyable for players.
  I could really use the funds as soon as possible because when I can't get out there and do what i love I risk backsliding quickly. I can not express in words what this help would mean to me. It's scary knowing I can go from passionate and hard working to so depressed I can't get out of bed. I prefer door #1 it improves all aspects of my life. I was raised to work hard and do all I can to help others this is my way of doing that and is very fulfilling and the parks as well as the players greatly appreciate what I do which also helps my outlook on life. Mental illness although it does not present symptoms like cancer and other diseases can turn your world inside out in a flash and the human brain is so complex most treatments are still guesswork and trial and error stumbling into this breakthrough for myself after 20 years of trial and error was a godsend you may even say it saved my life.