Can I ask why you want to homeschool him at 4.5? Maybe given his previous experience, he needs a break from school type work. Or maybe he's just pretty young and unstructured play would give him a lot of opportunity to develop.
This sounds like a wise idea. I think that right now, your curriculum has to be 'find out what nurtures our family' so outside time, limit screen time and low nutrition food, seeking nurturing social time might be the goals for now.
I can see how a narrowly envisioned Montessori Program could be very wearing on a small giftie.
You mentioned that you were 'at odds' with DH on over finding a parenting perspective that fit. That can be tough. ((hugs))
Grinity
