A qucik option for "moving" blocks out would be to rig snatch blocks on the toe rail, run the jib sheets through them, then to the normal cars (blocks). You didn't say why you wanted to move the blocks farther out, but I use the snatch blocks when I'm about 60 degrees off the wind (barber haul).
Well, this is another example of the problem with some certain boats, if I may make comment here. I think some manufacturers build boats for the uninitiated with the idea that they will create a design that is so specialized to easy sailing, that modification possibilities for better efficiency is lost. I have had several Hunter owners, who have wished to increase their headsail size running into the same problem of not being able to install a track to accommodate the proper lead for various sized headsails. Of course not every Hunter model suffers from this. There are some not so older designs that accommodate change easily, but some of the newer designs that offer 135% headsails on furlers do not. Of course someone with more experience will figure this out right away, but someone new to the sport hasn't a clue and of course the sailsperson won't bring it up. So, it is buyer beware and it fits under the category of the school of hard knocks. Of course, there are some who are very happy with the design as is and don't need to make changes. For those folks, the shoe fits. But, the shoe doesn't fit for the rest of you who might find you want more out of your boat.
Sublime my friend, do what gives you pleasure, and no offense intended but my .02c says jib sheet tracks won't add enough speed to warrant the effort. Take it from a former gear head who still can't grasp 6kts as "fast" and has spent far too many hours tweaking our rig with little or no speed increase. Keep it simple, clean the bottom, tune the rig and love the boat for just what it is.
Fair winds. Mike
Very trick. Nice looking too. I'm sure you figured you could also gain that elusive .5 knot by not dragging the toys around, right?? ;^)I added that shot because it reminded me of a similar quest to yours where I couldn't shake the spinnaker/gennaker/genoa idea that it'd add some much needed speed. The project and the R&D did keep me occupied for months, which is good, but in the end it was crazy expensive to get to my level of perfection. Yes it's cool, wows the fleet on the right day and helps on a narrow range of wind directions......but not enough to warrant spending so much. So the next guy who owns my boat gets a very nice upgrade.
Carbon bow sprit, Custom cut kevlar gennaker, Facnor continuou$$ line furler from the cockpit, Garhaur blocks, 5/16 sheets and Lewmar Self tailing winches. It's a ton of boat jewelry that deploys/retrieves with expert ease but only adds .5kt in a specific range.