I think I will get the DIY package and let you know how the build went.
I hope you know your way around soldering 
Better first to read instructions and watch few videos before you start making your own DIY.
the one that is the same size as the BTClock is roughly $400
Than how big was nkv's coinkite clock in full size?I can share some opinions once I have both.
That would be nice.I think BTClock have big advantage that you can customize and change it however you want.
Developer is constantly updating it and adding new versions.