Turbo sizing

Ryan-

I'm very interested in your build, and I actually don't want to sway you away from the turbo (because I want to see what you can do with it).

FYI- the centri set-up's can be a lot cheaper than you think. Take this one for example:
[ame="http://www.ebay.com/itm/Dodge-Ram-Hemi-GS-Motorsports-Supercharger-kit/191154506398?_trksid=p2050601.c100085.m2372&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140211132617%26meid%3D6695064064154451990%26pid%3D100085%26prg%3D20140211132617%26rk%3D3%26rkt%3D4%26sd%3D291138520242%26clkid%3D6695065258991655181&_qi=RTM1562571"]http://www.ebay.com/itm/Dodge-Ram-Hemi-GS-Motorsports-Supercharger-kit/191154506398?_trksid=p2050601.c100085.m2372&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140211132617%26meid%3D6695064064154451990%26pid%3D100085%26prg%3D20140211132617%26rk%3D3%26rkt%3D4%26sd%3D291138520242%26clkid%3D6695065258991655181&_qi=RTM1562571[/ame]

That's probably a novi 1200, which is more than adequate for what you're after. Bolt on to what you have, front cover and all.

Disclaimer: that's not my ad, I don't know the guy, and I caution against buying used centri's and turbo's. My buddy bought one that had a chipped compressor wheel - turned out to be a bad deal. Just look things over closely and budget a rebuild kit when you buy.