Its time for a new clutch/pressure plate/ tranny, etc.

My synchros have given out and I no longer have 1st, and soon to be missing second gear.... I've managed to scoop up an Infiniti I30 tranny from a local junk yard, which I got a steal on (550.00).
I have decided to re-do the whole clutch assembly and I was wondering what you all would recommend. I have had the ACT HDSS kit for nearly 3 yrs now and I'm thinking of purchasing the XTSS.

My question is:
Is the XTSS too much for my car(3.5 swap, TS ECU, I/H/E, VAFC II, UDP)
According to ACT, the XTSS withstands up to 449 ft/lbs. of torque and the HDSS holds up to 362 ft/lbs of torque.
I know i'm nowhere near the 449 ft/lbs but I figure I might benefit from it if I decide to squeeze in the near future.
I do want to stay with an ACT set-up... I've been happy with their product.

So is the XTSS just overkill for my set-up!?