Help with 340 rebuild - Chicagoland area

Westech automotive run by Norm Brandes in silver lake, wisconsin is just over the border from you. Full service machine shop and automotive repair that has been featured in Hot Rod magazine numerous times in the past specializing in performance car issues. I believe they have a dyno for tuning as well.
Its a option, but also I'm trying to both learn how to do this, I've done just about everything r&r wise, including trans drops, diff replacements and engine pulls. Now I'd like to actually learn internals, so rebuilding diffs, engines and transmissions. Other reason why I'd like to at least do some of it is I'm broke, I work part time and am on high school. I'm typing this out in my AP government class right now actually

Not opposed to paying people, but holy hell most shops I've talked to want at least 5 grand for just a rering.