The Delta works fine
My '85 O'28 had a 14# Delta with it when we bought her. I was a little skeptical about the size, but we have had the boat anchored in all conditions including a 40 knot squall with no problems. I have 18' of 3/8" chain that helps to get the anchor down deep into the sand or mud with 175' of 7/16" double braide nylon line. My primary anchor is a 22# Bruce with 20' of 3/8" chain and 200' of 1/2" double braid. The Bruce will not fit in the locker, it rides in the roller, but the locker will hold the Delta, a 14# Danforth spare, and all the chain and line. It is a tight fit but it works I don't have the exact dimensions of the locker but it's approximately the size of the 14# danforth plus 2 to 3 inches. PM