Good read - I am stuck in the same era as you pin-wise. Will probably never own a DMD even though I don't mind playing other peoples
Not sure you are going to find EleKtra up to your expectations. I have one but would rank it well below Centaur, Paragon, EBD, Fathom, etc. It is a hard game to play, and very hard to achieve 3 ball multiball, but just lacks the excitement of the Bally classics.
cheers
Ian