Once you're familiar with Vegas's audio capabilities, it shouldn't add more than a couple days work soup to nuts. The secret is to have it work for you while you do other things. The editing part is time-consuming, but ripping with Hypercube and rendering work in full time ... maybe x2 depending on your processor. When you do those steps, do it overnight or while you're watching a movie or playing with your kids or whatever. Don't discount it as an option though. It's surprisingly easy to learn and lets you do some amazing crossfades.