I fell on the playground in second grade, pushing my permanent front tooth into my skull. They removed it, and I had a partial plate all my growing up years, and braces on again, off again, root canals (previous unknown damage to other front tooth), hours upon hours of dentistry and orthodontia...fun times. Fun, fun times.
When I was 18 they bridged between the other front tooth and whatever the one is on the other side. This required filing down the two teeth to fit the bridge over. They said it would last 20 years. It's been 26. Could use replaced, but it's still there.
If these are not front teeth I might go for the second option. If they are teeth that will be easily noticed I would probably do the first option.
Tell her that I said that someday she will thank thank thank her parents for caring enough to spend the money so she doesn't have to grow up toothless. I know I do.