Todd, a tag 1352-216 indicates a 93 S10 behind a 2.2L while a tag 1352-257 is from a late model Nissan 4wd w/transfer case. Doubt that you have one of those!!! A 93 s10 will have an electronic speedo setup....on page 10 of my Webshots "shoebox" I have pictures of both the mechanical and electronic setups.
I wouldn't discount an electronic setup....granted, the converter box @ $300 is pricey, but so is rebuilding an older high-mileage T5 with a mechanical speedo. You might get lucky and get a T5 that is in better shape internally.
Dave
