How much does your DS think he can manage without undue fatigue?
Honestly, while he is young-- he DOES know his own body better than anyone else. What does HE think ought to be a hard limit? Does it need to be an "hourly" kind of limit, an assignment-specific one? Or is it total on the day?
Eh-- well, if the slant-board works, then ideally you'd want to be using one for homework at home, right? Can you BORROW one from the school to try at home for a period prior to writing it in his IEP? It will be a noticeable difference from classmates-- might as well be sure it will help.
Does his OT have one you could try?
