Sub-domains and Sub-Site Installations on Shared Hosting

Hi, I have a couple of questions relating to installation. 1. I have a shared hosting service (GoDaddy) which, installs a basic drupal profile using their Installatron programme. I have set-up devsites in the main domain (D8) and sub-domain (D7 & D8) for both learning and development purposes. How do I then install the Opigno distribution? I.e. I have set-up the command line interface and have been getting to grips with the use of composer as a dependency manager to install the contributed modules & themes. However, reading the labyrinthal Drupal documentation, distributions seem to present a quite different set and level of challenges that may force me to download component features of the distributions separately - is that possible or advisable? 2. The site I want to build involves some distinct working areas for different membership grades and service types. I.e. The Opigno LMS would be one part of a broader learning eco-system containing 3 course types/membership domains that may or may not contain various facets such as collaborative learning, learning resource and information service centres. I am aware that the new GROUP module may make the need to use the multiple domains or sub-sites modules unnecessary. Can Opigno be integrated as a sub-element/ Learning Management Centre within this broader framework? or, Should it still take the lead and then direct users to the needed resource centers as and when needed? This second question also raises further questions in respect of the feasibility of using of Opigno within broader frameworks or its ability to tie in with others such as Open Atrium collaborative learning distribution? I look forward to hearing from you. Kr, Chris