That layout looks very similar to the DF 5x5 that I am doing and with the 3x5 setup its almost a mix between the volume(?) and intensity phase.
Why not just do the DF 5x5 with a short Volume phase (4 weeks or so) and an intensity phase? (Your setup looks good I'm just wondering)
Or are you looking at having alternating weeks just to change it up and help fight off boredom?