I'll offer $150 + shipping for the header/cat ... (assuming shipping is under $40).
my guesstimates
$500 for the engine (complete w/harness, etc)
$150 per axle
$150 for trans
$50 for xfer case
$200 for misc bits on ebay (lights, interior, etc)
subtract the PITA factor ... my estimates might even be low too!
Rob