first, you'd have been fine with b16a2 pistons in it (probably a better choice also)
AND
a p28 ECU from phearable.net, because a) its chipped with a basemap and tuned to a car that is similar to yours
b) don't ned a knock sensor, it can be run without one and programmed for it not to look for one
c) would have saved you ALOT on the knock sensor

and agreed, about the cam gears, stock is fine, even if you get stage 1 cams, stock is fine.

and you didnt even get cams...

you're forgetting more important stuff.
ARP rod bolts, resizing the LS rods, make sure you get someone to hone the walls so they are nice and clean for your new pistons.

without the ARP rod bolts and the resized rods, GL!