Hope all is well.  I have purchased a couple of these continuous soft shackles from local West Marine rigger (her name at the Kemah location store is Tania) for about $25 for 3mm dynema with soft cover and $35 for 6mm dynema with soft cover.  You can verify the loop length usually around 1ft complete loop is her standard.  I assume your local West Marine if they have a rigger in Huntington could make the same.

Best,

   David

    Galini, A54 #100