for those who are interested, i finally got the dimensions of the G5 psu.

6 7/8-Wide
2 3/8 -Tall
15 7/8 -Length including the fans on the back

Now if we do a comparison, we will see that other than the fact that the fans are too big, we can do the mod.
case = 7"W x 15"L x 2.5"H
PSU = 6 7/8"W x 15 7/8"L x 2 3/8"H

If we take off the fans, it will fit. Look out modding comunity, here i come with a new QS PSU!!!!