Completely tangential, but I just did two repairs using ClampTite's stainless wire tool. Fixed a garden hose end that'd gotten corroded, and the air pressure lead on a cordless inflator. It's a bit spendy but it does a nice job. In the case of the garden hose, none of the retail patching kits works well (or doesn't use an ugly-ass clamp that get in the way) and there wasn't room inside the Ryobi inflator to allow for a screw-type hose clamp. Both of these repairs used barbed-end fittings, so the wire could compress the hose wall enough to ensure a tight fit that's unlikely to pull loose.
In a pinch I'd use one for boat hoses, but it does need good clearance to work the tool. Beyond the room to make the tool fit 'straight in' you need to have an arc around the area to engage the last action that secures the connection. In some tight quarters there might not be as much room as desired.
As for clamp sources, does McMaster have them?