Makita Battery Model.
Everbilt 3-1/2 in. x 15 in. Stainless Steel Push Plate is readily available and only $10.
is about 1mm thick, just right for the terminal connector blades.
but I'm not sure how conductive stainless steel is, or whether it will be easy to solder.
Sketchup is free software, but if you like, you can go to
and view and edit on your web browser too!