Great progress Chance, It's fun when you can start to see the look it will have later. The cab mount set up looks good. Are you gonna need to flare your fenders using the Dodge chassis?
On the radiator/inter-cooler issue: There is a lot of room to be had under the cab, mine lives there with no issues with heat at all. The bottom of the radiator and the bottom of the oil pan are at the same height. I am using the donor unit and I have removable covers should I need to access the front of the engine or radiator.
Rob