1. Cat4006 doesnot come default with SupE3 module. The chassis is just blank and you have to chosse the modules that you want to run.AFA Sup 3 goes it is supported on on Cat4006-S3 chassis. If you have any chassis other than the above mentioned, it will not work.Cat4006 chassis also support Sup1 and Sup2.
2 WS-X4014 is the Sup3 with built in routing card/feature on that.WS-X4306and WS-X4148-RJ are the line cards for the chasis.