"polishing it out" will distort the view. It depends on how deep the scratches are also. Unless putting it in a baja to be used offroad I wouldn't bother. I found several T1 windshields in great condition for about $45 at a local show. SB winshields were more$.
Just my opinion.
4play (@\|/@)(.\~/.)
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> TIA,
> Rob in Salt Lake