Send me lots of pics with GOOD captions and I'll post them on a DIY page.
Note that most of the aftermarket panniers are 2mm thick. Mine are 1/16" which is about 1.5mm, but they are supported and protected by an iron bracket, which I like better personally, but then I would say that wouldn't I? See the pics of my setup at:
http://www.horizonsunlimited.com/johnson/OurBike.shtml
The advantage of the iron frame of course is that it is very tough and difficult to bend, especially with the boxes inside. I've seen a lot of bent and mangled alloy boxes.
The negative of the steel frame is that you need to design it to be easily removeable as well, adding complexity.
I think the top box should be no heavier than 1.5mm.
I also like to see the lids made so that if things are a little mangled they will still work adequately, which a lot of aftermarket bags with nice fancy seals won't do. Simple simple simple.
Get hardware at the yacht chandlers for the best, or any hardware store on a budget.
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Grant Johnson
Share the Dream!
at:
www.HorizonsUnlimited.com