If lighting is a big issue I would probably do the HID retrofit over the LEDs, that's if you don't have any quorums with using them on non-projector housings.
LED's are bright but they don't project the beam as nice as halogens or HIDs, and it sounds like you need a lot of light with your racing. By the way, what kind of racing do you do?
For me I just plan on doing the fog lights for looks and potentially see if I can get the headlight housing from Europe or projectors before doing an HID conversion. Maybe that would be a great thing to do a GB on.