G50 conversion questions
 

I'm considering a G50 conversion but had a few questions...i know patrick makes a kit (but they dont respond to my emails) i was just wondering which G50 to use...are they all the same size? know they made a G64, and ive heard it would require cutting into the body to get that one to work because of length...are all G50's the same? from 87 to when? and do they all shift as good as each other? ive been spoiled by newer cars and preffer the crisp tight shift feel...

tia