I would just plan on spending a lot of time in front of the tv evenings, ripping.
If you haven't hand quilted before, I would not start with an oversized king! Rip first. You will need to take the layers apart after ripping. Meanwhile, look for *good* longarm quilters in your area (or shop here on the board; lots of reliable LAers here!). IMO, that would be the best way to finish this quilt and move on.