That works fine. As far as I know NZ employers don't (can't?) look down on it - an ATPL is an ATPL. I did it (actually I converted a pommy one to an Ozzie one then an NZ one). I know several other people who have done it. Go for it - save yourself some stress. I'm sure you've done enough flight tests, and the airlines will give you a good wringing out every six months anyway!