Doobywooby - it's a hard decision that's for sure. Make sure to research to get the actual statistics on the risk of scar rupture as I was surprised by how minimal the difference (for after 1CS, bikini type cut etc) was between the risk of any woman having uterine rupture.
On the haemarroids - I had these after my emergency CS. I had contractions but did not get even close to 'active' labour and a million miles from pushing. These are a pregnancy thing rather than a delivery thing (though I bet delivery can make them aparent/worse). Mine also cleared up quite quickly and have not reappeared yet.