Red Hot Mess.. OSP 11. Neutron ML2 Boron ODL

searching for a comprehensive "how-to" guide covering the complete install UnderCloud , OSP 11, ODL Boron, Neutron ML2 Plugin using RHEL 7.4 on Virtualbox"
So many inconsitencies and dated documentation. Missing Subscrition Manager missing , is it depricated in lieu of 'Passync".msi
when to install the
" Ironic Python Agent Image for RHOSP 11.0" .. Is this installed before or after the undercloud
1 . Install RHEL 7.4
2. register subscription .. doe's not work
3. Plan your inetwork
4. install undercloud. totally not worklng.