2500 lbs may be stretching it unless you gut the interior and possibly add some lightweight body parts or windows.

350rwhp is about the limits of the stock bottom end. Forged pieces would be about $800. You can make that power with stock head and manifolds, but they would need to be ported. A bigger turbo would also be required as well as light fuel system mods (injectors and 255lph in-tank).