Need advice on my workflow. Cut/edit/audio denoise
 

I've been digitzing family vhs tapes. My current workflow after capture in virtualdub is to deinteralce and crop/resize in hybrid. What I'm missing and wanting in my workflow is a way to cut/edit the videos so that I can remove extra recording time at the beginning/end of the video because I didn't, for example, end the capture in a timely manner. The other thing I'm looking for is a way to do some audio denoising. The recordings have that white noise hiss that isn't deafening, I just find it unpleasant. In the past I was using Adobe Premiere Pro to cut/edit and also using the denoise function at a low % which gave me results I was quite happy with and I also liked that I could preview the changing quickly in real time but I've found that Premiere doesn't give me the option to keep the video file in the rec.601 color space and automatically converts when exporting it slightly changing the color, which I don't like. Plus running it through Premiere is obviously re-encoding it again which I don't like. Should I just use virtualdub again after capture to edit/cut down the video length? Is Soundforge my best bet for denoising audio without re-encoding the video? I like keeping my workflow down to as few steps as I can but any suggestions would be very welcomed.

Found lossless cut for doing trims which has been great. Started messing with sound forge but it seems that it wants to export the file back into an avi by default, I can choose mp4 from the options (which is what my video file is prior to importing it to sound forge). Is sound forge re-encoding my file as well? I feel like I might as well deal with Premiere and just do some slight color correction and have both tools in one spot. Or is sound forge not even touching the encoding for the video portion of the file and only dealing in audio?