For bigger ships, like Idrises and Javelins, are we thinking that enough Argos can tow an Idris or a Javelin?

With as many caveats as I can put before this as humanly possible, I don't see a reason why they couldn't. We may disable it in some way in the future if we find it's becoming a horrendous problem, but I foresee it being something that will work out of the box. Again, that Idris or Javelin has to be willing, and if you're turning up with a fleet of SRVs, you'd better be turning up with something to make the Idris and Javelin less angry about you trying to tow it.