If I had to choose a Macron shirt template for an updated sash/diagonal design I would be tempted to go for the 2014/15 Lazio design. Similar to our 70s top I would prefer it if the sash went from the top right shoulder to the bottom left hand corner of the shirt. However, I did notice that the standard Macron sash team wear sash shirt goes in the opposite direction and the neck line is a standard crew neck. Depending on the sponsor, it is possible for the sash to remain unbroken, however, some designs elect to leave a gap in the middle. I am not too fussed on the colour of the shorts, however, our 70s kit mainly utilised claret shorts. The same with the socks I would go with either all amber with claret hoops or claret with amber hoops. Anyway, here is a very rough mock up to demonstrate how it might look.