Sorry if I repeat anything someone's said before- I've read this at some speed, so any duplication is apologised for in advance.
Monarchs/PMs- I don't have a particularly strong view on which should be used, but looking at some of those values given earlier, I was wondering if they took into account the fact that Britain's going to be relatively plutocratic, and will hence have rather low dip. values. Might be a cause for bumping them up a point or two.
Previous Events:
-The Irish potato famine. You've got that down as a one choice event, but I think that's a mistake. The Irish after all view it as a British orchestrated massacre. Give two choices- 'We must save our subjects' and 'The Free Market will prevail'. This would reflect the way that the free trade view of most officials of the day ensured that the famine was worse than it needed to be. The first option would mean a heavy hit towards mercantislism, plus lost money and perhaps -1 stability, while the other loses population and tax value.
-The Liverpool and Manchester Railway. As someone who knows too much on the 19th century transport infrastructure, I can see a few flaws here. Most importantly, the L&M came a good 10-15 years before the railways became dominant as a transport network. But as a symbolic thing it's good I suppose. However, the government would never dream in investing in any such scheme- the most the government did was grant the charter that allowed for compulsory purchase of land along the route. It wouldn't cost money from the gvoernment's perspective.
Some event suggestions, in no real order:
-Railway booms: The important ones were in the early 1840s, the 1860s and 1870s. These could manifest themselves in a hefty boost to infrastructure, and a tax bonus.
-Isambard Kingdom Brunnel: again, an infrastructure boost and perhaps a tax boost in Bristol.
-Cholera epidemic of 1850something (I think it is at least): Two choices- 'build sewer system' or 'one of nature's problems'. The first would cost money, the second population.
-White man's burden: Take it and lose some innovation perhaps, but get lots of nice CBs against all those dark skinned natives. Otherwise some kind of penalty.
-Trevellyn (sp)'s reforms: Formation of the profesional civil service, centralisation up, plutocracy up, or aristocracy up & stability drop
-Fashoda Affair (1898): CB with France, relations down.
-I-forget-the-name island: Volcanic island appears, Britain, France and Italy all claim, quarrel, island sinks into the sea shortly after. Small hit on relations and sheepish faces all round.
Got to go now, but I'll hopefully be able to get back with some more.