request for data, Flanker SU-27SM

Hate to do this cause I'm usually known for finding stuff. I spent 8 hours
or so googling for info on the SU-27SM upgrade, found lots of listings but
no hard numbers. What makes me really mad is that I had data on this plane
last year but now cant find it!!
What I know/ what I need to know: It's supposed to be THE main upgrade for
extant low time Flankers making it basically a single seat multi-role
equivalent to the MK, it will get additional wing tanks as well as the
ability to carry drop tanks. Internal fuel increased to 21,923lb. It gets
stronger landing gear to enable a higher gross weight, and will carry pretty
much anything in the weapon inventory.
What I NEED are hard numbers, empty weight , gross weight and weather it
will get the uprated engines (they are an option).
Hope someone can help, thanks :-)

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Curiosity killed the cat, and I'm gonna find out why!