Unfortunately, porting things from the KotOR to TSL is a violation of the EULA (End-user license agreement) and so folks aren't really allowed to do it. There's also a rule on the forums against porting. The only way I could see around it would be finding a head in TSL that is similar to your Revan and then creating a new skin from scratch to resemble what you saw in KotOR.
Considering trying out (or returning to) SWTOR? You may as well go through my link
and help get me some SWTOR referral points!