here's the problem i came upon. should i go for a d16z6, have vt4k and have to work some extra wiring or should i just stay stock, d15a6, sacrifice the might vtak, pay a little more for the motor with less miles?

d16-150, 160k miles - $350 + whatever for harness and ecu
d15-50k miles - $525 no extra costs.

im really leaning towards the d15 since its got less miles...