Ive got all my evidence together, which really a lot is what was in the original application that the LA turned down BUT ive highlighted specific parts now and highlighted the teachers comments especially stating about my sons difficulties and that he needs constant support to work etc. Also included the GP letter to camhs asking them to assess my son for ASD/behavioural disturbance and the problems with schooling. Im still waiting for the paed letter stating that my son needs assessing. Included hospital letters with his diagnosis' and the plans for future tests etc. Also included a photocopy highlighting the part of the SEN COP that states if a medical condition stops a child assessing school etc then they can assessed.
Question is: Do i just do a covering paragraph tying the evidence in together? I just want to get across that my son needs assessing because there is an underlying behavioural/learning difficulty that needs assessing to find out why my son doesnt like school (school say he happy), doesnt want to attend school (managed to do half hour every day this week and today actually got him in the classroom for half hour) and also the medical problems make accessing education difficult as this affects his behaviour after hospital admissions and he gets ill a lot so his attendance is low (about 60% i think). its a viscious circle because the medical impacts the learning and i got this across clearly last time and he was turned down 
Any help would be greatly appreciated.x