As an alternate to a traditional rivet gun, assuming you have a cordless drill. I don’t own one but I have seen these used and it worked great. There are dozens of brands and prices ranges available. Might be worth a look.
https://whatrocksandwhatsucks.com/cordless-drill-electric-rivet-gun-adapter/
https://whatrocksandwhatsucks.com/cordless-drill-electric-rivet-gun-adapter/