Good caution. Agree, easy to miss. The Factory Five instructions website (
https://www.factoryfiveparts.com/instructions/) is a good source and should always be checked. Especially for options not typically shown in the build manual. I've frequently found what I needed there. Although to be fair, the IRS sway bar instructions you found on the website, in addition to showing the longer bolts on the exploded diagram, does say "Use the new included 5/8 ”x 2.50” bolt for the Toe link." Hate to point it out, and not being critical. We've all missed things. And paid frequently with extra work. Part of the experience, right? You're build is looking great. The red suspension is cool.