Well as I was searching online for swing arm spools I thought to myself, 35 bucks for a little piece of metal??? No way! Not being left with much option, I began ordering and ran into some issues with the seller's website. I gave up.
Wondering through Lowe's, I stumbled upon an amazing piece of metal!

Part name: Vanguard 1/2 x 1/2 female adapter (fpt x Solder)

Location: Lowe's or Home Depot in plumbing section






DID I MENTION THEY ARE $2 A PIECE!!!
They bolt right on and fit perfect. I just thought I'd share this wonderful alternative that a stumbled on.

 

lol. i bet there's plenty of things in the home improvement store that could function as a spool. good on ya for finding your own solution.