I'm having a bit of a dilemma. I have been piecing together a build for an NOS black 2008 six13 frame I snagged on ebay a while back. Frame still has the warranty card on it. I picked up an Ultegra SL groupset over the winter when PBK were practically giving them away. Well, I've now stumbled upon the opportunity to purchase a barely used cherry CAAD9-4 with full rival (including brakes) and a Force BB30 crank for an unbelievable deal. Part of me wants to resell the six13 frameset and ultegra gruppo and snag the CAAD9. The CAAD would be slightly cheaper than the six13 I've put together. My heart says yes, but my brain says no. Thoughts?