Why? A 5.3 without a cam isn't going to make 280-300rwhp. And while I know you can put a cam in it and maybe save money over the Hemi, why does that make it a superior motor? Because everyone has one?
Cheap doesn't necessarily mean better, just means easier (if you only have to do it once).
What are the issues? Sorry, I know I'm asking you to regurgitate stuff from earlier posts, but they aren't here to read.