As my little ones get older they will definitely be included in what I do and currently are as much as possible. I have great memories of growing up doing construction work with my father. At 2 & 4 a balsa build is a little bit much for the 2 year old since he is full of fun. The 4 year old could help since he is vary careful most of the time.
I was able to carve out a little time last night and got some of the parts cut out and test fit. Seems like there are a lot of spare parts.

Guess I'm going to need to study the images on their web site and elsewhere a lot more.
Part 1 Time lapse