NOS anything is a good idea..... I am guessin you and your wife also use utensils. They are metal and they are "washed". Even at home they are not 100 sanitized. There are some great products out there to kill 99 of germs. And besides..... Who's using the straight razors any ways? If a used vintage razor that has been sanitized doesn't bother you..... Then use those.

Another route you can go is send the razors to a pro and have them restored..... They look good as new. And would she know the difference?