sheets, furler, etc
All good questions. When we built this boat, we discussed many of them at length as I was worried about the same issues.
We choose a Schaefer furler. I have 2 furling lines setup at all times. One goes to the jib furler, the other terminates in a figure 8 knot for the Code 0 on the ready. When I hoist the Code 0, part of the exercise is to attach the Code 0 furling line to the code 0 furler.
I leave the sheets on the Code 0 in snake mode in the bag. I lead these aft, and have a second set of blocks for the sheets, so I can leave the jib sheets lead as well. We put a cleat conveniently located near the primaries to store the sheets for the sail not in use.
When both sails are hoisted, it looks a lot like a solent rig, with the 2 sails only inches apart. If you want to tack, you do need to roll up the code 0. Of course you can tack the jib conventionally because it's on the inside.
If you want to jibe the code 0, you can without rolling it up if you lead both the sheets in front (like you might do to make a cruising chute jibe). The sail effectively flags out in front of everything.
All of this depends on the rig allowing you to place the code 0 in front of the jib. A fraction rig makes this easy, but I think you could do it with a removable sprit of some sort, even if your jib was all the way forward. In our case we had the boat builder make an extra long anchor roller, with a place to attach the code 0 forward. There also has to be enough clearance up top, which again a fractional rig makes easy, but maybe a spinnaker halyard would allow for this.
There are other furlers that might be better depending on your preference. Lots of the furlers for this purpose are continuous line furlers (I think Facnor works this way). When we looked at these, we imagined having to go forward to work the continuous furling line, although in retrospect I'm not sure this is actually true. The Schaefer furler is sort of a small conventional drum where the line accumulates when unfurled. It is nice for a cruiser anyway, to be able to roll up the code 0 when the wind comes up without sending anyone forward.
When we built the boat, we decided to build it with the code 0 setup, and wait to see if we wanted a cruising chute in addition. After living with this for 2 seasons, I have not been motivated to add the cruising chute to the inventory. Rolling is easier than socking. It reaches pretty nicely including in quartering situations. Again, we are cruising sailors, and your situation and preferences might be different.