The shift linkage is not the same. The end of the SE-R linkage needs to be cut off and welded to the B12 shifting rod.
You do not need custom halfshafts or axles. The Se-R's wheel base was very close to that of our b12's. If you position the engine and transmission right, the se-r axles should work. you can either use the se-r brake assy on your b12 or press out the b12 hub for a b13 hub, like nismodriver did.
If you already havent, Check out this link. I list just about everything you need.
http://www.nissanforums.com/showthre...5&pagenumber=2
Btw, I would allow more than one week to do this swap. That estimate is way off.