Looks really good man. What drop and wheels are on your truck?
Just letting you know. The ls7 rockers wont work on the 5.3. The intake are offset where the 5.3 are not. Not to mention the ratio is different. A ls6 cam would work great and can be found for a good price! For the rockers, just keep the stock ones and put a comp trunion upgrade in them. Good luck on your swap man! You will love it when its done. I went from a 450K mile v6 to a built LS and its a hoot!!!
91 RCSB-- Forged LS7 bottom end, ported LS3 heads, ported LS3 intake, custom EPS cam and a 4l80e.