well im sure i will catch you next week.
back to topic;
well there are a few alternatives to getting boost under the hood of your sc300.
you can look for a full motor and have 3 options
1 us spec 2jz exspensive as all hell but worth the money
2 jdm 2jz ceramic turbos, cant boost 18 all the time, and you might need a front clip to get all the shit you need.
3 jdm vvti 2jz lots of wires and same as above i would think.

or you can

look for a 2jz gte head with turbos, intake manifold, ecu, and wireing harness
NA-T
1.5jz 1jz head on the 2j block.
my02