Most shops will be hit or miss with spokes because it's just not profitable for them to carry a handful of spokes in every guage and length that are made. If you're looking for a double butted 14/15/14 spoke in 295 or 296 length, they are still made and available. I suggest buying the spokes you need from
Wheel Builder or
Alchemy Bike Works adn then having a local wheel builder or competent shop install them for you.