Are there proxies avilable for invoice inbound now in ECC 6.0?

I am about to do an implementation with a marketplace that has us recieving service entry sheets, goods reciepts and invoices and posting them into ECC 6.0. Are there proxies now available for these or do I still use the IDOC's available for inbound and the ALEAUD IDOC for response?

If there are proxies, can someone give me the name of the standard content I can pull from the service marketplace. I have been doing this mainly with SRM in past clients and have not dealt with ECC much lately.

thanks!

Chris