Heck you will pay anywhere from $600 top $1100 just for a decent complete upper reciever. $900 for a good Adams, Reinier, Spikes, and more for a DD.
Id rather buy the whole gun complete and ready to rock for $900!!!
The prices are not coming down on the SIG's. Factory rep says they are goin up in 2014.
Many people are more than happ to pay $1400 for a SIG! But you will be hard pressed to find them!
May God make smooth the path you follow!