BBAY1,
Another detail you might want to consider is correct style hose clamps. Pete Lesler, "W113SL" on this forum, sells complete sets and is quite experienced in the production details of these cars. You can e-mail him by finding him in the Members list and clicking on his user ID.
Rodd
Powell, Ohio, USA
1966 230SL, Euro, Auto, Leather, both tops
1994 E420