Wiper arm upgrades

Hello. I have a 69 valiant witch only has one wiper. And the one it has has seen better days. I was wondering if anyone has put a newer wiper arm on their car that would be close to stock dimensions. I’m looking to do this just for the sake of being able to get cheap and reliable parts for my car without having to order it all the time. And I understand that this is not a purest decision so please be nice and if I should look elsewhere for help please point me in the right direction
This is what I got for my '72 Scamp
TRICO Gold® 15 Inch Pack of 2 Automotive Replacement Windshield Wiper Blades for My Car (18-1515), Easy DIY Install & Superior Road Visibility .
I can't get the link to work but they are on Amazon for about $20

they worked great!