It seems to me that what's missing here is someone to take a fresh look at all the information that has been gathered and put it together into a document that tells his story (and yours) in a straightforward, objective manner. I do hope that you have given your local school system the chance to put all this confusing information into perspective, and come up with a program that meets your son's needs, since it's their job.
If you have approached the school, but are disappointed with their response or with their plan, then you may need to enlist the services of an advocate. This is a person who is trained in special education policy and can help you communicate with the school in a way that gets results. You need to be clear not only about your rights, but also what the school is obligated to do for your son. You can get the names of special education advocates by calling the Office for Civil Rights, or a local support agency such as the Learning Disabilities Association, or any organization that deals with the rights of persons with disabilities.
You may also need to have an independent professional (a school psychologist or neuropsychologist) look at all of the test data and school records to help you present a clear and unbiased picture of your child. Contact the State Board of Registration of Psychologists in your state capital to get the names of individuals who specialize in work with children with disabilities (in your case, ADHD and LD). Whatever you do, try to find someone the school system can respect. Ask the professional and the school how they feel about working with each other. This step can save a lot more time and will help you avoid frustration.
If you approach the school system with reasonable requests that are based on facts, and they do not respond in a way that you feel is appropriate, then you have the right to have the case heard by a mediator (contact your State Department of Education's Department of Special Education, to find out what you have to do to take this to mediation).