Part numbers you say? Is it avaialable?
PARTS PIMP TO THE RESCUE!
I ordered some for a customer back in November and they were still available then.
You will actually need the following parts:
24022-84M60
LINK, FUSIBLE
$10.02 NISSAN LIST: $13.58
24022-01G00
LINK, FUSIBLE
$7.13 NISSAN LIST: $9.67
24021-V5003
LINK, FUSIBLE
$5.68 NISSAN LIST: $7.70
You may also find you need a new battery, I would not be surprised if some damage was done to it, though it may not show up immediately...a few months later.
As stated above, the ECU should be protected and ok. When you go to replace the links, pull the battery out completely (to be able to work easier-the links typically dont want to budge) while the battery is out, check your positive and negative cables, but they should be ok as well.