the traditional plunking setup is however much weight you need to stick to the bottom
anywhere from three to 6 ozs. some people use double hooks for sand shrimp and some don't personal choice. Most folks use birdies or winged bobbers ie spin'n glows I have a favorite color for my winter steelies and some people change every ten minutes till they get lucky. the lead leader length is anywhere from 4 to 12 inches.
look at how other people are rigging up, lead length,and weight, color spin'n'glow .
leader length is average steelie 24 to 48 inches.

Hope this helps
Rick