Though I could share how I mounted the vintage style Craven panniers to a HB rack on my new T120 Bonneville. Parts: Craven panniers type Comet, HB side rack, DIY caribou mounting brackets Mounted the HB side rack, this do not fit with oem sissybar. The HB siderack has solid support, and will take care of the bike if it fall on the side. Diy caribou mounting kit for the HB standard Adjust to fit where you wanna have the panniers Inside Outside, a tip when you make holes on number two. Just put the boxes on top of each other and make a mark true the first holes. The it will sync nice. rear view
I must say Henry that style of panniers do suit the classic lines of the T120 I suppose they would look good on any of the classic Triumphs. Excellent job mate.