The funny bit about the illustration of them going D to D with Scrolls is that very little, in fact only just possibly part of the Gospel of Mark was written before the Temple Destruction in 70 C.E, so they would only have had scrolls of the Hebrew Bible, calling on ordinary folk who were illiterate, so why carry them ? and what relevance did they have to the Good News about Jesus and the Kingdom ? They had no written Gospels about what Jesus supposedly said and did. Unless they carried copies of the Letters of Paul, but the genuine ones were actual letters to actual Congregations, not something that would convince the Public at the time, " Oh, our mate says in this Letter.......". About as powerful as " Bloke down the Pub said...". And Paul does not say much about Jesus actual life or words and teaching does he ?
After 70 C.E what were they going to say as they went D to D ? Oh sorry, all our expectations of Christ's return seem to be dashed ?
It is all so farcical, and anachronistic. Any Preachers about Jesus would have had rivals too, a number of groups started after his death, with very different ideas and teachings about him. Paul's movement was just one of them.