The FSA Vero crank was made for street fixed gears that don't do gear changes like track racers do. Don't throw good money after bad tweaking that system.
I'd suggest stopping now and investing in a quality crankset that you'll use for years. I know one guy that was racing on the same Campy Pista cranks he rode in the 70's.
You don't need to have Dura Ace or Campy, but a quality set will be a "buy it for life" thing. And they will have fairly high resale value if you upgrade or leave the sport.
I'm a fan of Dura Ace for the reasons stated above. But, there are lots of good options that aren't as expensive. Maybe others can comment.
Track is less expensive than road or MTB equipment, but there is a minimum amount of equipment that you'll need to get going. It's tough to do it on the dirt cheap.