Maybe consider creating the text in something like Inkscape and exporting a dxf file to insert into SketchUp. How are you using the model after you have the numbers in it?
Yeah they are being cut out in a plasma table, I struggle getting things scaled right for plasma through ink scape so I always want to double check in sketch up to make sure it’s good to go.
You can also get some good results with Fredo’s Curvizard. Combine that with a face maker shortcut and Joint pushpull and you can make lettering quite quickly.