well, price wise I think you've nailed it. Looks like that quick fuel pump is a holley clone. Probably wouldn't hurt to upgrade to 3/8" at some point. Although 5/16 should work for where you're at.
THis pump is a little more expensive, but it seems to be a popular choice with hotrodders. https://www.summitracing.com/int/parts/hly-12-815-1/overview/
