Croustibat............. Why are you so against someone doing their own work, many may have failed at doing things but when it works damn it feels good. A LS1 into a Nissan.... Why? You are ruining the Nissan name with that, yes more easy HP but you do not have a Nissan anymore just some Frankenstein type of car that would not handle nearly as well as a true Nissan.
I have had errors in my build but it was all a learning experience, anyone can throw money at someone and say build this but then it is not your build.
this is just my opinion....
As for a KA, turn it into a KA24DET and it is a SR killer...
plus the resale on a 240sx with a 300hp KA is far more than a SR, yes I know it costs a little more to build.