It's only worth taking on a job like that if you're already into the DIY thing or you are committed to building up a collection of tools and experience. There are so many ancillary tools that make a difference, just throwing a circular RO sander at the stairs is not going to stop it being a job from hell. How much hell will depend on initial condition of the stairs though.
Yeah I’m not work shy and also pretty tight with money.
Spent 20 years, man and boy, shifting tonnes of mud at the weekend for fun, tickling some wood with electric sand paper ain’t going to kill me.
It's only worth taking on a job like that if you're already into the DIY thing or you are committed to building up a collection of tools and experience. There are so many ancillary tools that make a difference, just throwing a circular RO sander at the stairs is not going to stop it being a job from hell. How much hell will depend on initial condition of the stairs though.