The number one request I get is to drop and offset a knife so it's away from the body but high and tight is no problem, and IWB is no problem either. My standard belt-loop is 1-3/4" but honestly I'd consider using a lg. Tek-Lok which gives you the advantage of taking the knife on and off without having to remove your belt. Here's some random pics of basic pancake sheath setups.... on a pancake sheath the back will be black no matter what color the front is.
An even better idea, I make sheaths that match the shape and hole pattern of the KaBar TDI Clip and I've done one for a 3 but can't find it... basically it will mount high and tight just like you want. Here's some sheaths I've made for smaller knives that attach to the TDI Clip.
Izula II:
BK14:
Better example of the TDI on a larger knife (BK15):
I would square off the bottom of the sheath though and mount the clip lower because the ESEE-3 is shorter than the knife shown... just thinking outloud.
Let me know what you think and you can contact me through my signature too. Might need some coating done later this year too... do you/can you use Norells Tan on a couple of JP rails I have?
Eli