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@gifkid
i thought i would have to fix the noodle in place somehow but the tension from the gear cable means that it doesn't move at all, even in the slackest gear.
^^^^^^^ there's not much I could find online about resizing internal hubs, but my understanding is you can only do it effectively with roller brake hubs, like this, not disc, which i'm guessing your alfine would be. taking off the roller brake (or removing the bolt that sits in its place) takes away a big deal, bringing it does to around 126mm. From there you only have to swap the non-drive-side lock nut for one of the thinner ones that are standard on shimano rear hubs. This makes it 122-3mm which easily fits without cold setting. Of course the dish and chain-line gets messed up with all this but i've compensated with an extra short bb.
Kevin you're right about the ratios. at the moment i've got 32/16 which makes the lowest gear at 28.5gi completely useless. I want to change to a 36t ring up front which would give me a top gear of 98.1. At the moment i'm riding on the flat in 6th and 7th, so it would be good to bring this further into the middle.