The Etech is a pig, yes, but it is easy enough to fix, once fixed it is on the level with the 361 or 357 give or take.
Modified, the 359 has more potential than the 357 IMHO.
But still if you have a couple smaller saws, do you realy need another that will only be a bit more power.
Though I own one I would not choose to get a 365, for the size it's 372 without a question, though both Stihl 460 and dolmar 7900 are good saws in the same size.
I cut fire wood a couple years with an 026 and an 066 not a bad combo, but beter with a 70-80 cc saw to fill in the gaps.
Almost think your buying a first house with the amount of thinking going into this.