Personally, I just stole the torso off of the Egyptian Overlord, then stuck it on a Kab. A Venom blade from the Scourge kit can be reasonably used as a Power Sword, Huskblade, and Agonizer. A helmeted head (The Sybarite one with the Blade you have to glue on suits my fancy), and the Sybarite legs also are a much better pose, easy to develop a base for, and offer a lot more of a fluid stance for modeling, and a more...dominating stature. I suppose the legs that usually carries the heavy weapon might be useful if you want to feature him dodging an incoming blow, and the basic running forward set of legs would be useful if you want to show him charging into the fray.
I unfortunately don't have a picture of mine--it's several hundred miles away at the moment-- but a lot of our kits have standardized components, don't be afraid to experiment a bit!
If you do want a whip look in there, I prefer the sprue from the Wych kit.
If you don't want a helmet, for God's sake please don't use the head from the standard Archon kit. The poor half smirk thing looks like the Overlord enjoys taking regular swims in nervicide.
"Death solves all problems. No man, no problem."