IDK about much about the importance of engine angle, if anyone does please tell me all...but I think it bolts up to the motor fine but that the angle is off. I can confirm this tomorrow if you want and post up results as I've kinda wanted to for a while and I have the required equipment sitting in the Gayrage.
I started a KA vs Z24 thread awhile ago on NICO, I have been slacking on that with new baby and ton of other things this last year.
Nice Pick-up, sounds like the price was right, your truck looks clean and rustless. I love my 720, have been really surprised by him.