Per the install manual, 6112s are 1-2.5" for the 2.7 and 1.5-2.5" for the 2.3. 0-2.75" is across ALL platforms, as in other trucks.
You want 4600s or 5100s if you want to keep front height stock.
The international Tremor is just a base model +3k package with shocks, wheel/tires, copilot 360, bash plate, and a grill with offroad lights. This is likely going to end up as a $3000 package for the XL/XLT with 2.3 engines, kinda like a FX4+
I read somewhere before that Ford was making a suspension upgrade kit for the 24+ with Bilstein shocks, so this lines up with the Tremor coming in. It would be nice to have a warranty backed kit with a mild leveling kit.