at least skim the head a few times... you know, just to make sure it's straight... oh and if the exhaust manifold is a bit crooked, just make sure the port and flange match... you know, just so it's all correct :-)
and just in case your diff needs work, viscous lsd's are cheap for 32's.... and if you find the crown wheel and pinion are no good, then if there happens to be an 4.636 - C23 Serena SR20DE 4WD Manual, C23 CD20T 4WD (4.636:1)in a wrecking yard, then that might be good for replacement parts???
:-)