dura Ace is by far more expensive. You looking at $90 bb + $350 crank arms + $155 chainring..that is $600...
sugino $98 bb + $225 crank arms + $120 chainring.. = $450 aprox.
sram omnium crankset is $220. Very decent one for half price. You could later on replace bb for lets say Phil Wood. Will cost you $160. but you do not have to do it right away.