I didn't find any 5 strings sets you could get with those specific gauges, but this is what I did. Go to
www.juststrings.com.
http://www.juststrings.com/ghs-3025.html (4 string set, .45-.95)
http://www.juststrings.com/ghs-fb126.html (.126 single string)
I used these strings on my fretless Carvin Bolt 5 and they were great. Old school thump for country sound (I play in a country-styled gospel group, so yes, they work for the country genre). A little expensive to buy a seperate 4 and single string set, but flats do virtually last for years anyway.
Hope it meets your needs.