Look into the Mangrove Hip Shooter
Sorry to suggest something you didn't ask about, but it sounds like you're traveling and the Mangrove Hip Shooter is great for that. Personally, I prefer it over all of the other options I have tried, including the Bean-type bucket and my old mesh nightmare that collapsed around the stripping line constantly. The price is only slightly cheaper than the Orvis basket, but there are a lots of folks who fish the surf out here in California who swear by the Hip Shooter. That said, I do like the idea of DIY stuff and I'm sure whatever you make will be great, if you go that route.