The dulcimer should be an excellent choice for a first kit for your daughter.

You will need a clear flat workspace for her. Since there will be several glue steps, each of which should be allowed a few hours or overnight for drying before going to the next step, plan on having the space occupied for about a week, perhaps. More or less depending on how impatient - or fussy - she is about getting everything "just right."

The normal recommendation for lap dulcies is a "white glue." The easiest to find in my area is probably "Elmer's" but you should get a "wood grade" - not just the paper glue. Elmer's Wood Glue is okay but I've had a few performance failures with it on moderately loaded joints, and would suggest "Titebond II" or "Loctite Wood Worx" as somewhat better. A lumber or hardware outlet should have adequate ones.

Any of these glues can be cleaned up nicely with a slightly damp paper towel if you get the spills and "squeeze out" before they dry.

Depending on the assembly sequence your kit uses, you'll likely want "a lot of clamps." Usually spring type wooden or plastic clothes pins work nicely, and if the instructions call for it, a bag of at least 50 is about right for a dulcimer.

It should be fun.

John