He'd be coming from a larger distance obviously, and that thing isn't blocking any of Kakuzu's jutsu for multiple reasons.
He wasn't "right" in front of him, and it still takes speed KG.
That's irrelevant to the scenario. IF Jiraiya closes the distance and hits him with Rasengan, threads aren't going to be able to do a thing. Will he be able to do something while Jiraiya is coming for him? Obviously. But that wasn't the argument here.
Then that's a completely different discussion which is irrelevant to any of the points I was making.
Can we stop being daft? Jesus Christ. It does not take any speed worth mentioning to get up from right in front of somebody and try to hit them in 5 seconds. And yes, he was right in front of him when Choza and Choji attacked and he was right under him when he attacked himself, from underground. Stop reaching. It's ridiculous and it only shows me that you have no useful argumentation left.