All good suggestions, I think I may have to try a few. I think I might try playing a campaign doing everything possible to entice the AI to attack me, i.e. get excommunicated as a matter of priority, get a terrible rep, resist the urge to go on a rampage as soon as another faction attacks, take a city I know will be attacked a lot etc. Of course this does mean I may have to play against all of my most basic TW instincts, including, god forbid, putting myself in a position where there will be a good chance I will lose the campaign. Maybe I'll make it my objective to survive until a certain date, rather than actually win the campaign.

Stainless Steel is next on my mod shopping list, but it's about 800Mb and I only have a feeble internet connection at the moment.