Well,
The latest version of the 5002 will not have the recessed date wheel problems, factory AR is truer to gen (but the disappearing xtal does look cool), gen IWC doesn't have strong lume (Vac lume does look good though), I think Domi can do the rotor bearing, and I do not know about the case refinish........
Having said all that, these watches are pretty good as is. I would invest in a Gen strap, rotor bearing......and the rest is on you.....personal preference is all.