Both JConcepts and Avid make the hexs that you will need (just depends if you want blue - JC or black - Avid) you will then need the front axles (JConcepts do these in both steel or titanium) and steerings blocks (AS9880 - here
http://www.dms-racing.com/index.php?...ategory_id=417)
Part Numbers;
JC2171 - steel front axles (hex type)
JC2171T - titanium front axles (hex type)
AV1001-CONV - 12mm clamping hex conversion parts (inc AE steering blocks)
JC2081 - blue alloy 12mm rear hexs (SC10)
JC2134 - blue alloy 12mm front hexs (SC10)
AV1001-RR - black alloy 12mm rear hexs (SC10)
AV1001-FR - black alloy 12mm front hexs (SC10)
AV1001-SET - black alloy 12mm hexs, front and rear set of 4 (SC10)