$1470 for a new Kapex with a return period and a full warranty. $980 for the used Kapex plus $166 and $81 for the missing parts. So, you save $243. I guess you have to first, examine the saw to make sure it is in good condition. Warped fence pieces and misaligned beds seem to be the most prevalent problems. If everything is straight and flat, I'd want to make a 90 degree cut and a 45 degree cut and test those for accuracy. I'd want to see that the saw moves smoothly in each axis and locks hard when set. If all is right, the decision comes down to if giving up the return period and the warranty is worth $243.