Nice! that looks like a sweet setup. I've been renting a uhaul motorcycle whenever I need to haul bikes, it's actually pretty awesome, $16 for 24h. I don't have a great place to store a trailer at my house, gotta love home owners associations.
Ryan Lavergne II you can find it anywhere. eBay, amazon, autozone. I purchased my 1st one on amazon, lost the bolts and then purchased the 2nd one at autozone with extra bolts. I went with the 1” 1/4. Don’t like the 2” one.