It is a fictional course though isn't it...? Therefore you can play with whatever you want, regarding yardages.
I've done my best to gain the right sizes for what I'm seeking, but it's loosely based on a real course. However, i know it plays short, so I'm happy to see a guestimate of longer holes. Placing a drawn out 18 holes or using a top image, means ALL the holes will be relative. Maybe have a play with some of the issues you're likely to face when designing the toughest hole of the 18. I know I'm finding some fun issues to navigate that hopefully I have better solutions for..