I just completed my K1 (ser #1949). Using the K1 as a base line for time and difficulty. Please compare the K2 and KX1. I wish to start looking at my next project. I like building kits -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.6.9 - Release Date: 1/6/2005