Bad link for us-west-2 launching
The link to launch a us-west-2 instance (https://console.aws.amazon.com/ec2/home?region=us-west-1#launchAmi=ami-94f17ca4) is slightly bugged - needs to be us-west-2, not us-west-1, as it stands now it just errors out that the AMI ID doesn't exist in the selected region.
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information