If saving cash is what you're all about I can tell you with certainty " If you know the difference between the open end and box end of a wrench, you can rebuild the tranny yourself." Start with a good kit, a new modern shifter body, and a decent set of instructions. I followed a 12 part series on YouTube, bought quality parts and saved myself $800. I do not know why so many people think they can't do this task. Maybe lack of confidence but by "gosh, by golly" it's
a really easy task.