Cheers mate and to you. Get yourself a post started so we can see the progress.
Re gears: I ended up with a 11-42 32t which I haven't ridden yet but I assume it'll be too light for any kind of substantial top end. But in any case I'll update here when she's on road and I've had a test ride.
I'm just about to start building up a Courier Comp - The gear ratio chat is proper helpful. Good luck with the rest of yours!