From bottom to top it is just under 5 feet, it is made to sit down low in front of it since I am disabled. The great thing about it is that you can change parts out. We used a ready-made nightstand for the base, if if you want a stand up machine, you can use a higher bottom part.
As for the wood working, this was our first ever wood working project. You can get twice the wood you will need for 25 bucks, so all I can tell you is, take your time, use templates, and you can always re-cut a piece of wood. When you put it together, and it comes out with edges sticking out, you can easily use a belt sander to even things off, and it looks totally professional. I think you can do it if you have a partner to help you hold, or a nice workbench table. The article has the things we learned while doing it that may help. 1-10 difficulty? Time wise about a 7 for time consumption, and about a 6 in difficulty if you have good planning and tools.