To be honest, with all the combined hours...
Four and half hours total. Not too bad honestly, the difficulty was... Well, kinda hard to tell. For someone who is mechanically experienced it shouldn't be a problem as long as long as they have a quality jack.
For someone who is just getting used to mechanics it could be overwhelming, horribly overwhelming. Especially if you do not have a quality jack, seriously...
So I'm convinced that everyone here should be fine doing something like this. Just have your stuff in order and it will be fine.