So I'm back to the original plan of just tackeling the inlaw roof . The walls between living room/bedroom and kitchen/bathroom are load bearing . I've already taken out the kitchen/living room. I peeked into the attic last week its all 2x4 stick build except the joists are 2x6. It's full of a bunch of yucky old ,blown in looking , insulation. I want to make this one big masterbed , maybe put a half bath in there. I was thinking about a big master bath , but we really don't need that I suppose .
So the plan is once the heating season is over I demo the interior and roof , leaving only the exterior walls. Then set trusses , roof , and I have the summer to drywall/wire/paint ect. I was thinking about building 2x4 walls over the existing ones for 2x the insulation.