I bought one several years ago, when the expander and crusher were two separate tools, and never regretted it. I made the crusher out of a pair of pliers.
Stewmac's "forever return" policy, is worth something.
FG-150 are REAL good guitars, bringing in some $ on ebay. VERY likely that it will need a neck reset, if the action's high/saddle low. You are one lucky ---!
I've used a slightly reground toenail clippers since 1976, when I learned of it from its inventor, Paul Dwyer, who then ran the refurb dept. at At. Louis Music Supply. I've never found anything to work as well as this.