can buy you some time. Items you will need for the job are as follows :

a wire brush ,Safety Glasses , Work Gloves ,a tarp or cover to put down on the stoop to protect from dripping sandpaper 60 grit and 100 grit , a paint scraper, a good primer like rustoleum rusty metal primer a finish paint to match the color of your existing railing ( may sure it is an oil based paint & primer (NOT LATEX)