i wouldn't go shortening that jacket. the zipper probably wouldn't be a problem for somebody, but the pockets are placed in proportion to the length of the jacket, and chopping the jacket will throw off the proportions.
i liked what poorsod said about this; the pitti coverage is really a sort of styleforum reality show. i will never touch 99% of the clothes they reported on, nor does a lot of it fit my aesthetic, and styleforum is diverse enough stylistically that the writers will not manage to hold interest by writing about more brands. Add to that the fact that writing about clothes tends to sound like cliche advertising copy--or on the flip side, it's really boring to read about a...
the backzip is OK but not as good as a sidezip would be. they seem to do limited quantities and colors of the backzip ones, but if you keep an eye out over time, you might find what you're looking for. also it's worth asking your cobbler if they could put a zipper in.
and @gettoasty let it bleed