HTPC - Kodi box

[K_C]

Any suggestions to build a half decent HTPC/Kodi Box from scratch? ...

No particular budget, only factor is low noise so not looking for big GPU with a big fan but still 4K if possible ??

Holy grail would be a totally ambient cooled rig if at all possible!

 

[K_C]

Nice little pc's the NUCs, there's a few little custom pre built boxes around but not many, fancy building my own though, hopefully with ambient cooling.