There are Companies out there that do Cummins conversions I dont know any offhand besides a local one Overland Diesel. As for those upgrades they sound good and as for halfshaft upgrade there is a kit that will allow 12k halfshafts to work with your current geared hubs.

 

New here but has anyone tried one of these superchargers on their 6.5L https://www.ebay.com/itm/274775116089?ul_noapp=true

 

Nope.

 

I found a couple of links. Looks like someone has done it? https://www.flashoffroad.com/Diesel/...percharge.html