See my post 78 for my take on it. This would not be a standard usage of ‘eminent’, despite being able to correlate it to a dictionary sense. In this case usage is a more important demarcation, but I’m not up for an argument. If you like ‘eminent’ in this usage, go hog wild.
I think you’re stretching at a justification — especially since eminently practical, suitable, affordable, etc. are recognized and commonly encountered figures of speech. Immanence is more a metaphysical term — conservative wags used to sport pseudo-intellectual tee shirts saying “Don’t Immanentize the Eschaton”.