Hi and welcome to SES
For oils and service parts contact Alyn @ AS Performance - most of us use him and he gives great advise and sells at very competitive prices... Millers oils are highly recommended..
I've only had a scoob just over a year but found getting mechanicals right (good servicing) etc to be a good foundation - then the fun stuff can be bolted on without fear of basics going wrong..
Enjoy the scoob