The document is not for migrating your server in particular but for how shared hosting environment should be in general since you asked for security tutorial. It does *NOT* mean yours (711 permission) will fail under LSWS.
Your custom settings in httpd.conf should be supported in LSWS.
Please note that LSWS reads Apache httpd.conf and behaves the same way as Apache (LSWS is Apache drop-in replacement). LSWS will not modify or create anything for Apache.
As pointed out earlier, you can take 15-day trial and have LSWS run in paralell with Apache and see if there is any issue for your environment.