Skank 996,
I got my Kellerman's from the dealer i usee when i took my bike for it's service. had seen Old Yella's setup and then spotted the indicators sitting in my dealer's cabinet whilst I was milling about waiting.
If you can't get them locally give Shirlaw's a bell. They're sound fellas and will see you right.
Speak to Neil Miller at
www.shirlaws.com and tell him Guy Cope sentcha