Can the 3.5L V6 Magnum hold the compression of a turbo

Short answer is yes, it can, if you severely limit the boost. But I wouldn't. The V6 compression ratio leaves very little room for additional compression. There are very few turbo manufacturers who have a "system" to fit the SXT Magnum, for just that reason. So you'll be doing a ton of customizing not to mention the re-programming - on your own. For the money and aggravation, go with a small supercharger. You can even get an electric supercharger that runs on an independent battery. Look into the Crossfire for possible other options in the engine bay. Or buy a decent used SRT8, it might be less costly in the long run!

will cut off at stop light but start right up some time idling rough before cutting of lighting bolts sign in dash

So if the lighting bolts come on how can you fix that