The delta-v for a mission like this is pretty incredible. Voyager 1 is still traveling at about 17km/s away from the sun. That's not much less than when it left

The delta-v for a mission like this is pretty incredible. Voyager 1 is still traveling at about 17km/s away from the sun. That's not much less than when it left Earth despite traveling so far away from the Sun... only because of the special gravity assists it did on the way out. There are some things that even money can't solve :) Compared to a planet, a spacecraft is almost negligible in both weight and capability to accelerate in space. Ion engines are pretty cool though; Maybe we can do it today but it will take a lot longer to get there. Of course, if it takes too long, we may not have a viable spacecraft by the time it gets there. Furthermore, even if do have a viable spacecraft, we might not have the knowhow to work with the technology that we sent in the first place.