I know your horns have semential value for you, so why not mount them under the headlights. you could get a stebel and put it under the left side cover and loose that tank. Either loose it or convert it into a extra gas tank or beer keg.. That way you keep the horns on display that your dad gave you. AND you have plenty of horn in the hidden stebel. Nobody knows they're just for looks but you ( and us of course, but we won't tell ). Take care and good luck on your project. To GOD be the Glory, xhdskip