Does your DS actually need structured, ie prepared work to do? Or could you start with a less tiring for you version of Home ed on Sundays?
Might he be happy with 'deepdiving' into some favourite topics. Providing resources in the form of library books, charity shop books around the topic, magazines , newspapers, dvds, tv opportunities... could be basis for him to pore over what he's keen on.
Then..if he's the writing, drawing or cutting out articles type he might want to compile files or booklets all about his topic of the moment.
Just a thought, based on my approach which has been created by what works for close me and my HE son 11.
Sunday mornings round the table, laptops working, papers strewn about, library books perilously close to bowls of cereal....all making up purposive conversation (ie nit picking and arguments).