I would opt for the newer bike. There may be minor changes over the years but my main concern would be age related problems with the older bike. More wear and tear over the years could have a cumlative effect on certain parts.
Think wheel bearings, cables, bushings, seals, degrading wire harness and general corrosion.
Either bike might likely need new tires. Good time to slip in new wheel bearings while the wheels are off. Ditto for rear brake shoe inspection too.
Keep us in the loop.
