Printing with Dynamic workspace layers

I have a print service setup and working well on my AGS 10.0 machine. We are also running a 10.1 machine.
The print service is a gp task which brings in rest services as .lyr files and manages heirarchy and such. Within my web application I allow users to connect to dynamic services, pick a dataset to connect to and symbolize the data as they choose.

My issue is- how can I reproduce what they have on screen into my script for a pdf/ jpeg export? Arcpy cannot alter vector data symbol colors and it appears I cannot connect to a dynamic workspace service with the same parameters the web apis can in terms of telling it what dataset to bring in and how to symbolize it.

Any ideas?

Thanks,
Tony