Questions for all you diesel owners

[Supertrucker]

Well I've got a plan that involved swapping the tired 350 for a diesel. Now, I don't want to use the typical 6.2. I want the newer 6.5TD. So, I'd like to know if any of you have done this or something similar. A 6.2 is almost the same and even if you've done that, I'd like to see some pictures or explanation of what was done to make it work. I know I could rebuild the 35 or swap for an upgraded gas engine, but I want the fuel economy and towing power that only a diesel can offer. With the rising cost of gas, this I think is a very viable option to keep the simplicity and reliability of my old pickup as opposed to taking it in the shorts for the high insurance costs and vehicle payments of a newer one.