Can't even do it in AI as it won't feather any shape above 1350 mm. Can I ask what page size are you using to print it from? is it a roll? Normally when I do anything in a lager format I do the same as you did making the rectangle in the guide layer and then in a new layer make place in the crop marks manually. I don't usually bother with putting in the bleed layer but I ask the printer how accurate is their cutting and set my crop marks to their answer which at the moment is 4 mm.