My husband and oldest daughter are both aspie as well as bipolar. They are on very small doses of meds which help control the cycles as well as anxiety. But I am talking super low doses. Meds are not for everyone I am aware. My husband is a Millwright which is kinda like a cross between and engineer and a mechanic. He needs the physical movement and stress the job requires he loves to really work as it helps him. He sees things in 3-d and blue prints etc come very easy to him. He has to deal with all kinds from very rich to labor workers. He is a union worker and the unions have an entry trianing program that trains and schools the members for free they work as they train. Getting paid and getting raises and health ins. So you might want to have him look into something like that. The unions tend to really act and think like a brotherhood and look after their own. Many are different I dare to say on the spectrum even if they have never heard of it. Millwrights tend to have more math skills required of them then say electric or carpentry. Hope it helps a little.
We have our rough times please don't get me wrong but for the most part we own our home, 10 acres, have 4 kids we home school, have 2 pigs, 4 cats, 6 dogs, go on day trips, live with in our means and enjoy what we have and try to live right. Sure we stumble and meds get checked but we love each other and we stick together and that is all that counts. Your son will make it everyone finds their way with support and time. Best of luck.