Spent most of the week working on the MW’s rear axle, however this was complete, as far as I could go without assistance, by Thursday afternoon.  I then returned to making the battery boxes, drilling the sides and plug welding them to the base of the first one after punching holes in the bases for cable access.  I made the ends to fit and  punched two small holes in each for ventilation, then welded them on.  All that is needed to finish the first box is to grind the welds flat and paint it.