hello everyone and thanks for looking. I am plumbing in a bathroom (sink, toilet and acrylic tub with mortar bed) in my attic, but because of limited space between joists and not really wanting to cut in or notch them i came up with this arrangement (see photos and please don't laugh). the question is will it work? and any venting issues? I realize this is probably not up to code. Also looking for comments on internal toilet flange, okay or not? i will need to use one as a female flange will put it way above the finished floor. also
the sink will be upstream from the toilet but haven't gotten that far yet.