Still based on it being an old version AFAIK - I got one and went down this route Making the emuMMC - NH Switch Guide but it is a massive ballache to setup.
SN list to check - Switch Informations by serial number - READ THE FIRST POST before asking questions
The IIS issue sounds like you need to either have each site on a different port or use Server Name Indication in the bindings if you have to use 443.
That last SQL error looks like either the service isnt running or firewall blocking the SQL port?
HD4free seem to be letting people in again at the moment - I have 1 invite spare - PM me your email and a pinky swear not to be a douche as they are quite strict on activity/seeding :)
UK ISPs are starting to block live sport streaming servers that Kodi uses (starting with football and just for the duration of the matches)
UK to block Kodi pirates in real-time: Saturday kick-off