I'm on the same boat. There is nothing available that keeps the Fbody location and clears the DSE sub. There are mounts that move it up top from S&P and ebay which you could find at the end of this thread but I'm not digging the look too much.
http://www.pro-touring.com/forum/sho...ht=frontrunner
I like the look of the stock acc. mounts, but will probably go with VA's kit which I think sells for a little over $2k. ATS's kit looks killer but it's almost double the price of VA's...