A business wishes to host both a Word press blog and a Joomla content management system on a same VPC server. The business want to use Route 53 to generate distinct domains for each application. Each of these two programs may have around 10 instances inside the business. During the instance's launch, the organization specified two distinct network interfaces (main + secondary ENIs) with their unique Elastic IPs. The advice was to utilize a public IP from AWS rather than an elastic IP, since the account's elastic IP allotment is limited per region. Which course of action would you suggest to the organization?