I would ditch the VVT block for an earlier one. Yes you can make one work but there is no advantage to them. A stock 6.1 timing set is good to 1000+hp and is proven reliable. Melling 10342 pump. There are cams used all over for 5.7/6.1 engines. You can go solid lifter and $2000 rockers if you want but the need for them IMO only comes from wanting to RPM over 8K rpm. There are 100's of guys that have supercharged their Gen III's and many proven combo's to steal info from. LXForums and Modern Mopar forum have a ton of info and used parts to save you time and money.