$6,000 is a lot of money for a watch. By spending that amount you should be able to expect a complete, well assembled, solid piece with no issues. When the small issues start to arise it will be disappointing, and the fact you spent that amount on it will feel like a betrayal. It will not be perfect, it will be very nice, and the $6,000 isn't the end of your outlay for this one. So, are you prepared for that? If you build it yourself it will take much longer but in the end it will be exactly what you want, and it will be built right.