I have a Kimber Pro Carry HD II and Kimber conversion kit in what I would call 95-99% condition and am being offered a SIG P226 with SIG conversion kit. My Kimber is in great condition and has served me well. I'm really looking to sell it and buy a full size 1911 or trade for one but I'm tempted by this offer. I value the combo around $900-950. He values the SIG combo around the same and offered a straight trade. The Kimber has about 2000 rounds through it, 1000 .22LR through the conversion. If I'm reading his email correctly he says the SIG only has 50 rounds through it and the conversion kit only has 50 rounds through it, but in the pics they look kinda beat up to me. Also how can I figure out how old the SIG is? It doesnt have the rail on it like the new ones but I dont know when that started. Thanks for input.