LV Berkeley Discontinued

FYI- if anyone has had their eye on a Berkeley bag, now is the time! I noticed it had disappeared from the website, so I called the Maui boutique (will be there next wk) and bought the last one from the store!
Question about the (discontinued) Berkeley!

Does anyone know if a long strap can be added to the Berkeley bag, to make it a shoulder / crossbody style? And is there a particular thickness or strap style that works best (bandoulier, keepall, eva) -- thank you!