Post sound without DV toolkit?
 

I work for production company; we use Avid and also have the Mbox/PT LE 4.6 we bought for recording voice overs. We don't have the DV toolkit. We are preparing to do a large multicam live event to be edited for DVD. Without the DV toolkit, is it practical to do the audio mixing in Pro Tools? Is there risk of slipping out of sync without the timecode?

Also, with our setup, what is the best workflow for getting audio to and from PT from Avid? Just Import the AIFF files that avid creates into PT then back into Avid? Would I lose any quality in the process?