Mike,
When I used to be with the model club, Group 25, we used to do this as a youth activity at the club's contest run annually. I was usually in charge. The 'Make It 'N Take It' all comes in a large cardboard box, about 1 1/2 foot cubed. If I remember correctly, you get twenty-five kits, one in a regular box and twenty-four which come individually bagged. The decals and instructions come bundled together separately. They also provide a bag of slot blade screw drivers. Since I was regularly doing an after school program at the time, I provided mini loaner tool kits to use in the building process. Each tool kit had a set of sprue cutters, a sanding stick (finger nail file), some round tooth picks, and tube glue (only if required). Some kits are better than others in terms of the snap together process. Some snap and hold, while others do not hold together well, or the pins break off easily, hence the possible need for cement. I would recommend going onto the web site to see which kits are being offered in the program. I would then go to your LHS and pick up 1 or 2 of the possible choices, and then assemble them. This way you can find out ahead of time how well each one goes together and possible issues that the students might face. For example locator holes on chrome parts get filled in by the chrome process. They may need to be drilled out again for pins to snap in, without breaking them off. This is a terrific, low cost, fun activity for kids. From a teacher's perspective, I'd say that your wife should definitely go for it!