Looking for advise for choosing brakes

[camaro daddy]

I have a 69 camaro that will mostly be a weekend warrior however I am interested in possibily road racing or autocross if I choose to. Cost is a factor so I narrowed down to a few choices let me know what you think. 1st)Kit Wilwood has 2-peice rotors front and rear 12.19 x .81 with 6 piston dynapro calipers on all 4 corners with e-brake for about $2400.00. 2nd) Wilwood kit 12.90 x 1.1 2- peice rotors 6 piston super lite calipers in the front with 1 peice 12.19 rotors 4piston dynalite calipers in the rear with e-brake for $2700.00. I was leening toward the 1st kit because it was a little less and had matching 6 piston calipers all the way around with a greater clamping area but sacrificing a little smaller rotor in the front and having 2- piece rotors in the rear.I've always felt like the money should be in the front but I thought this would be a balance set up for the money. Also on the 2nd kit it would be a little more cost but a little more heavy duty in the front. I also wonder if I would notice a difference at all with there being such a small difference in the rotors. Thanks for any opinions or advise.
Dion