A set of clear valve covers for the SOHC would really be cool, all right, but it would also be a lot of work, and I wonder if they would have sealing issues around the spark plug tubes. That is a big question mark for me on those.
Thanks for the offer on the pentroofs, but I already have a set that I will be using for a pattern. Haven't gotten too far on the clear valve cover project since this summer; been tied up with the intake adapter instead. But I will definitely get to it soon...