A base kit w/2860's can support 700+ on the ragged edge. But at lower boost 10-15 psi it should get the LLT up to around 550 flywheel. 550 wheel will be pushing your luck on pump gas.
But it's all the same kit doing the job. Later on as you pay the car down and get used to the power you can upgrade.
Pistons + rods +studs+ high boost is your "stage 2" and you didnt even change turbo hardware.
Swap the snails to something like a gt3071R-WG and you can support up to 1000 flywheel before you have to jump turbo flange size.