With the right parts, one can adapt a Toyota t-case to the Sportage transmission. But I am not aware of anyone who has done it. It requires the main shaft from a Volvo, and a $700 adapter from Trail Gear (I think). The result is, you have low t-case fears available and possibility of doubling the t-case. But also, then you'd have Toyota driveshaft flanges ready to bolt up to Toyota axles.

95 Sportage w/welded and 5.89 geared dana 44's on 38.5" TSL's.- SADLY SOLD
CURRENTLY - 2000 sportage, 5.38 gears, welded diffs, 35" tires, 5.5" lift

http://www.cardomain.com/ride/341410