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...I have one of the kits and some of the fittings, and I'm pretty sure I didn't pay a hundred and eighty bucks for it.

The inserts themselves are in the six to eight dollars each range for cost right now. You ought to shop around on the internet for a better price.

https://www.amazon.com/Unior-Pedal-T.../dp/B001PTCKJO

That's a link to the one for sale by Niagara Cycle for 111 bucks plus four or five to ship in the USA. I know things are different in Japan, because it's hard to find distributors for some of the stuff Hozan makes here in the USA.

But I think that if you already spent 60 bucks to do one arm, and now need to do another, an investment of a little over a hundred dollars might be reasonable even if you don't plan on doing any more of them.

By the time you send it to me in California, and I repair it and send it back, you're probably money ahead to just suck it up and buy the kit online.