I've just fitted a spare UN55 and a surly chainring - keeping the stock cranks. They're fine and like the limitless reliability of the square taper bb. Makes the most sense for commuting imo.
Brother do a carbon 1 1/8 fork.
Rear is ok, had to replace the front with a deore.
Yours looks good, should get the alfine cranks next. Mine could do with loosing some weight, Hmmm I wonder if you can still get that fork...
Brakes ok btw?