During the recent head job on the 300D I used tye wraps to "mark" the chain and the sprocket and used a bungee strap to maintain tension. When I roll one in I aways have tye wraps maintaining the chain to cam sprocket relationship but pulling the head requires removal of the cam sprocket. Using the bungee strap (the chain was not tye wrapped together - just a tye wrap at the pin location for installation on the camshaft. This allowed me to lay out the chain towards both sides of the car as needed.
The bungee cord to the chain allowed easier installation of the head too.