Just came from Kia Acropolis today, and as it turns out, the Sorento line-up isn't as messy as what the flurry of information previously posted in the forums would suggest.
Here's their current price list:
LX Gas M/T - 1.09M, no fogs, no roof rail, black side mirrors, gas engine
LX Diesel M/T - 1.23M, same as above except the engine
LX Diesel A/T - 1.43M, same as M/T diesel but with fog lamps, roof rails and cargo cover. Side mirrors are still black
EX Diesel AT - 1.79M, 7-seater TOTL variant.
What's interesting here is that the bare diesel AT variant, which was previously available for 1.330M, is gone. I asked my SA about it, and she said that only the first batch of shipments this year contained this particular variant. Subsequent shipments will not have the 1.33M LX anymore.
This means that some dealers might still have the 1.33M LX on stock, while others don't. Hence the apparent confusion. My guess is that Kia itself isn't so sure what variants they want to bring in, so they try out lots of combinations. Then there's the problem of moving the old stock of Sorentos (the ones that were overpriced, with the cheapest being 1.59M).
I'm guessing that in a few months, shipments will be more stable and standard. The current line-up that Kia Acropolis seems reasonable enough for me.