Redrawing stairs in Revit + parts for handrails

I am looking to have an existing staircase redrawn in Revit, with new handrail parts to be created, based on rough measurements. This will all be a new install, as no existing handrail is in place.
Also part of the job is to select from an handrail supplier available on the internet all the elements I would need to perform the installation
Important, I pay by the hour, no need to contact me if you intend to ask for fixed budget