Cheers Brett, a cogged belt sounds like a winner, I imagine they'd be expensive though. I'll probably contact you when I get closer to that bit of it.
The shutter came out ok in the end Geoff. If you look hard enough you'll see where I glued some foam back, in front of it, chopped too much out, ooops! I haven't tried silastic on foam yet, not sure if it would melt it or not. Liquid nails is waterproof and doesn't melt it
I'll have to setup the workshop out back again, now the kids had his BBQ out there and then have a bash at the doors, in between rain storms of course. They've forecast rain all week and though to next week, again