I'm not convinced that one set of wheels is the way to go for racing AND training, esp if you're a fultime roadie doing those sorts of training kms.
If I was doing 15k/kms a year and racing A-C grade weekly, I'd get the following.....
One set of Open Pro / Ultegra or DA / Straight guage 32h X 3 brass nips training wheels.
One set of Edge / White Industries H2 / DT Aerolite x3 28 rear, 20 radial front, alloy nips, racing wheels.
You could probably do it all on the latter, but It's a lot of coin if you brake a lot in start-stop urban riding. All the money is essentially in the rims.
There ya go, my 2c!