I use delta-based pedals on all my bikes.
Consider used Dura-Ace PD-7401 from ebay. Or if you want something new, the performance "Forte" road pedals are delta based and you can often get them on sale. I have both and prefer the Dura-Ace. If you troll e-bay carefully you can likely get a good set of the D-A pedals in good shape for 20-30 dollars.