I think so.... 
Wait, a grand for 2 complete 280zxs? Surely the engine parts alone are worth far more than that? Then you have the diffs, wheels, interior bits. Isn't that a bargain?
I'm in QLD remember so frieght is poison.
2 x L28 (1 x F54 & 1 x N42 blocks, 2 x N42 heads) = ?
2 x efi manifold and efi gear = $200
1 x auto = ? (got two already that no one wants)
1 x manual = $200
R180 = $150
R200 = $400?
Shafts = $100
Supspension = no one wants
Dash = no one wants
Interiors aren't real good = ?
Bodies a little rusty but most panels would be salvagable = ?
Bonnets = no one wants (got two good ones a home)
Wheels = no one wants (got a stack of them at home)
Not exactly getting a lot of profit here considering the amount of labour required to get these parts out. And I would know, i wrecked two manuals this time last year in much better condition than those.