MTA/SBK 47 ton GE diesel specs wanted

I was wondering if anyone had a spec sheet for the South Brooklyn Railway locomotives with the modified cabs. I wanna kitbash one in ho scale using a 70 ton switcher. I tried searching the internet but couldn't find anything, thanks

This is the one in particular i'd like to do http://members.trainweb.com/bedt/indloco/sbkn223.jpg" onclick="window.open(this.href);return false; SBK N2 in the early 90s