I am trying to decide on a racing wheelset and have a few options, but don't know which one is best for the riding i do. 135lbs, avg. 23mph on a road bike for sprint distance, but will be putting in a lot more training before i get to race these wheels much, looking mostly for ironman california 70.3 and coeur d'alene.

either a hed rear disc and tri spoke front (both hed clincher),
a tubular hed disc and tubular 404 set,
just the 404 set
a rear 808 and front 404

all options are under $1000 total

any advice is helpful