Wood Stair Replacement in Condo Conversion

I need a straight wooden staircase to replace the removed stairs between the basement and first floor of my townhome, which has been converted into separate condo units. The units will remain separate,... (Budget: $5000 - $10000 USD, Jobs: 3D Rendering, AutoCAD, Building, Building Architecture, Building Regulations, CAD/CAM, Construction, Home Design, Local Job)