first off: sell those OE-Rs and then just buy some ls7 lifters for way cheaper and they wont be loud like the OE-Rs will be.
second: do you have a bigger pulley than a 3.0 to use while youre figuring out your basic tune? youre going to need one.
third: have you read about the 105s having a problem with breaking?
dont get rockers, the stock ones work fine. you shouldnt need new bearings so long as your car runs well and you always took care of the oil. if you havent bought head studs do it now, youll need them for when you have to take your motor apart when you break something. they also last forever, unlike the stock TTY head bolts. do you know that the rollmasters need a little bit of work on them and/or the oil pump cover so they dont break from rubbing on anything or running on an angle? do you have a GIANT breaker bar or a *****in impact for the crank bolt? youll need that too.
just a few thoughts there, might have missed something.