>>12121189 (OP)
>Seems like the cheapest way to get an arcade stick with all Seimitsu parts
Well, to play non-AES games you're going to need to get a converter. Which will cost more.
Then you've got the fact that the lever is not really a standard Seimitsu arcade lever. It's a LS-22, which is more similar to the kind of levers that Hori and Agetec put in their products throughout the 90s. It has short-hinge microswitches and a shorter shaft than an LS-32, more similar to an LS-56 but not really that close to that one either.
The buttons are around 24mm and use Tokai MM9-2 keyswitches (same as Seimitsu 24mm buttons).
I think a Mayflash F500 V2 that has been modded with Seimitsu parts is a better choice. It's bigger, heavier, has built in turbo, is more easily fixed (and those Tokai switches do have a tendency to break after heavy use) and is tested to have very low latency.
It's kind of hard to beat the F500 V2 for price/performance. It's kind of boring to own because it's not rare or expensive, but it just does almost everything right.