Gander LaX should be willing to order you in any rod you want. They’ve done this for me and others I know in the past. I would call them, ask for Dale Radcliffe, and have him do a inventory check on all their stores to see if that rod is in inventory with one of their locations. If they find one in inventory they usually will pull it into your local store without a charge to you.
Croix does not sell rods on-line through their site so that option just doesn’t exist.
About rod breakage on the 6′ 3″ rods… I’ve got 4 of them that I’ve had for 4 years. Never had one break when it wasn’t clear and obvious abuse by the customer. Even after all the use they’ve had in my boat I’ve only had 1 major break (right in the middle) and lost one tip.
Do you store that rod in a locker? Check to see if there’s not some brace or bracket rubbing up against your rods weakening them in a specific spot. Even small scratches in a graphite rod can result in a catastrophic break if they’re in the right (or wrong as it might be in this case) place.
Just a suggestion for something to look into. It’s definitely a long shot.