Installing Bump Stops - WTB New U-Bolts

I'm about to install an RPG bump stop kit, and would like to buy new U-bolts. Can anyone suggest where I can order a set of four (ideally with new nuts) for a fair price?

You'd think this would be pretty straight-forward, but I'm having trouble locating the proper Ford part #. I think it's 9L3Z-5705-M, but there are a few variations to the 5705 part base #. I don't really trust my local Ford parts department, either- they'll end up ordering me an exhaust bracket. I'm also open to using non-factory U-bolts if anyone has any suggestions.

Bottom line is I'd like to have the CORRECT U-bolts available at the time of install so I can get it done without a hassle.

Any help appreciated. Thanks.

Clarification- I'm using my stock springs at the moment. Thanks.

UPDATE- Disregard. I was dealing with RPG and I can source the U-bolts from them. Great customer service from RPG. I plan on putting an update out on that later.

Your local Ford dealer prob has them in stock, just call them