If the studs are there, all you need are the rings and some nuts. The rings show up on eBay all the time. The ones from any tube frame will fit.
I picked up a spare set on eBay for $4.99 plus $2.50 shipping. It would take a whole lot more than $7.49 of my time to make them.
I picked up a spare set on eBay for $4.99 plus $2.50 shipping. It would take a whole lot more than $7.49 of my time to make them.