The instruction is exceptionally good with this one! As long as you are familiar with basic electronics and soldering, and have the time and courage to try, you should be fine. Having said that, there are tons of help you can get from this forum and Bottlehead forum. You can even have it factory pre-build (roughly doubles the price) or have someone else more experienced to build one for you (cheaper). I myself have build 3 cracks - 2 for friends and 1 for me (see here for pics: http://www.head-fi.org/t/476650/crack-bottlehead-otl/1380#post_9011077). Once you have done it, it is not hard at all. You can even go beyond the manual by cutting the wires at exact length for great look, or use upgraded components for better SQ. I do expect to have some time to spare for a few weekends ahead, so you can PM me if you need help.