I can do the basic setup of the WP as i wont have coding knowledge for further development. I can configure your domain to access two WP sites as you described below.
You can refer my similar completed project https://www.freelancer.com/projects/Linux/Make-Sub-Directory-domain-load-11697831/
About myself,
6+ yrs of relevant exp in Linux with followings
1) OS: Redhat,CentOS,Fedora and Ubuntu with Server Management, User management Bash scripting to take daily backups for database and code
2) APPLICATIONS:: a) LAMP Platform MemCache, Opcache
b) SVN server
c) Redmine 2.x installation on CentOS 6
d) Webservers: Apache Nginix
e) Load Balancing Ngnix, HAproxy
3) DATABASE:: MySQL/MariaDB/Percona installation, replication, galera cluster percona cluster,performance tuning and troubleshooting
4) MONITORING TOOLS:: a) Nagios with email and way2sms gateway notifications
b) Zabbix 2.4 with Email and ez-texting notifications.
5) CLOUD: a) AWS:- EC2 with autoscaling, VPC, RDS, Elasticache, S3, CloudFront, Route53 and SES
b) DigitalOcean:
6) OTHER TECHNOLOGIES:: Email marketing, DNS (power DNS setup with replication), LTSP, Redis, XenServer, KVM, DHCP