If you want a racing trike, do you want one that could actually win a trike race?
If so, stop trying to make a bike into a trike. It adds weight to the bike, making it less competitive.
Instead start with a car. You will be removing weight from the car to make in into a racing trike. This will lead to a more race-like power to weight ratio, better brakes and suspension for a trike and save a ton of money in the process.