If your wanting them for next week then you would be better off dealing direct and paying full price.

Group buys normally stay open for at least 2 - 3 weeks to allow everyone chance to make their mind up, sort out funds, and to wait for everything to be sorted.

Can you not put back together with standard for now ?

One thing im talking to C/B about is the possibility to have your own set modded and returned, as this will reduce the price further.