Pulling Rivets around "Z" brackets?

Getting close. I watched the new Van's video on tank construction and sealing, and he referenced an RV-12 close quarters rivet puller, or fashioning a small wedge to get the job done. I can't find the RV-12 rivet puller on line anywhere, and my instructions don't reference any small wedge. I do find a "Close quarter rivet pulling wedge" at Cleveland tools. Is this what people are using?

PRP-26A

This is the tool.
https://www.erivet.com/product_detail.cfm?ID=ERIVET_4811139_23043151&itemNbr=PRG-26A
Wedge also works.

I think the wedge is detailed in section 5 of the construction manual where there’s lots of other good information as well
The tool you mentioned from Cleveland tools will also work if you don’t want to make your own wedge but I personally like the homemade ones because I think they’re more versatile and easy to position how you want them since it doesn’t have a handle on it.