sounds like you've got pretty good reasoning behind your dislike of the eaton replacements...
it is sture, the eaton is not the best replacement for the G60.. it's not as efficient for one, but.. when it comes down to it for me.. price is a massive deciding factor... and reliability. after having my charger rebuilt by Gruven back in the day.. and having it fail 8k miles later, pissing oil like there was no tomorrow (just out of their 6 month warranty), i sent it to Oliver @ ORZ. The guy hooked me up, but now, somewhere around 15k later, an apex seal & wave-spring decided they didn't like their home, and chooched a displacer the price of my M90 conversion was somewhere around $800(ish), including a new IC, and paying a friend to do the welding... i've already beat the snot out of it, and while the car is now almost uncomfortably loud while driving, and the performance isn't what a g60 would show me @ similar boost levels, the price is right, AND more importantly, it keeps my car from being a slow-azz NA dog.
just my input, take it as you will