AFAIK, the only difference between the '94-'95 T-5 (for the last SN-95 5.0L engines) and other T-5's is the slightly longer input shaft length. The bellhousing for this engine matches this longer input shaft.
The great thing about this setup is that it places the shifter about an inch closer to the driver, but still over an inch farther away than the RAD transmision and bellhousing.
The standard Fox T-5 and bell places the shifter about 2 inches forward of the stock location.
The RAD bellhousing is a little bit longer, so using with a T-5 it places the shifter a little closer to the driver still (only about 3/4" farther forward).
Actually any combination works, but with the Fox T-5 and bell you have to notch the trans tunnel about 2 inches and move the console forward (if you have one) and chase down a longer shifter. Using the SN-95 bell and SN-95 T-5 you'll probably have to notch the trans tunnel a little over 1 inch and may not have to move the console.
Using the RAD bell and a SN-95 T-5 means that you may not have to make any changes.
The jury is still probably out on the longevity of using the RAD bell with a SN-95 T-5 without a pilot bearing spacer (the input shaft of a SN-95 T-5 is longer, but still not as long as a RAD). Obviously you don't need the spacer for a matched Fox or SN-95 trans/bell combo.
What we really need is a T-5 tailhousing with an adjustable shifter location. I saw an add-on developed for another Ford (XR4Ti?, T-Bird?) but it was expensive and not real strong looking.
