Glad to know we weren't the only ones that got late!!! nojoke
When we started doing the Rattler, it was almost 5pm. We stopped in Hot Springs for dinner and headed back. It was almost 9pm when we got to Ferguson's supply which they have Rattler stuff for sale. Unfortunately, when we got there, it looked like it was closed and there were some "yahoo" (for lack of a better term) farmers in their tractors drinking beers and started making stupid comments like "kan yous make a willy off 'dem things?" so we took off!
However, I found that you can get some of it online:
http://fergusonssupply.com/catalogue/