What will go wrong here?
Consideration should be given to long term sustainability. Is it realistic (statistically) to find a number of people within this group with sufficient IT and management skills to share knowledge, recruit future hub administrators? Or would it be better to ask people in the group to donate enough for a local IT company to do the administration?
What kind of systems can be put in place or are already in place to get priority (commercial) fixes / improvements / support?