LS3 in a 2002 C5 track car...some questions

[Rockitansky]

Hi all, I am interested in pulling my worn out LS6 and installing a LS3 495hp crate motor. I have several questions?
1) do I need the corvette batwing oil pan?
2) Is the GM controller P/N 19354330 engine controller the best way to go? vs Holley terminator etc?
3) Im not running any ABS, traction control, stabilitrac etc. Will all the wires hook up? Tach, speedo etc?
4) If I put 1 7/8" headers, no cats, do I need a dyno tune? Or do I need a tune at all?
5) reverse lockout a good idea?
6) OEM fuel pump enough to run this at hi revs?

This my first time doing this, so Im shooting from the hip so to say....THX Brian!

[Rockitansky]

Oh and I see its an internal balanced engine, I have a lightweight flywheel with monster clutch. Does this need to be balanced in anyway? THX