Getting keys made.

My Sunset Trail Travel Trailer key got lost and I found one spare. Now I want to get another set made but my local Walmart girl could not find a match. The key to the trailer door is a short key unlike the normal sized keys and the key to the boot is a little chrome gizzy. Someone told me the boot keys are all alike.

Where would be a good place to get an extra set of keys made? It could have been my Walmart key expert was lacking in expertise.