I stumbled in on this thread by accident.
If the T5 has a readable tag, then this
CHART can tell you what the gears are. However, it’s often wrong!
If you live where there are hills, then be careful not to get too much overdrive or you’ll be downshifting at every incline.
A T5 in serviceable condition is rated for 250HP and 300 lb-ft of torque. It will not take abuse but makes a great daily driver.
T5s are pretty hard to find these days, but they do show up if you search FB marketplace and swap meets.
The S10 T5 from 83-93 will have a Muncie bolt pattern where it bolts to the bell. The 94 and up T5s have a Ford bolt pattern.
The Camaro versions are Muncie from 92 and earlier. The Camaro versions have the shifter further back and that won’t work well with s bench seat.
The Ford Mustang versions have nice gear options but you’ll need a $170 adapter plate to bolt to a Chevy Muncie pattern bell. I’d stay with the S10 versions.
A cable speedo will work if all the right pieces are assembled.
Video of S10 tail swap with cable speedo connection. 
