Could you post a BOM to make this from scratch?
I think I would like to build this - but it would be my 1st RepRap and so a full BOM would really help figure out exactly what I'm doing...
Also what do you think about using extrusion for the X-axis instead of smooth rods?
amp; maybe 10mm smooth rods for the Y-axis? Would this help with the flex you mentioned earlier?
I am quite keen to make one with a large build volume, like around 500mm cube... I realise that just makes it phenominally harder BUT I think your design is likely to give the best shot at it. Even better than the MendelMax if you ask me.