Drop-in switch holder for a 1590B sized enclosure. This will hold two mini slide switches (cutout is 4mm x 7mm) and two 3mm LEDs, with room for excess wire to be hidden underneath. There is a cutout on one end for your wire to be ran through. Just install your switches and LEDs, tuck your wires, and epoxy this baby into your box.
This gives you a nice internal switch setup with a spot for your reverse polarity LED and a power indicator LED. If you have any recommendations or requests, just let me know and I'll try to accommodate.