Ckecked turbo and theres no movment. Well only round and round which even me with my little knowledge assumes thats all good

So it looks like its something else. Quite a lot came out when i cained it 2day and its quite clearly blue now. I'd of asked the poor bloke i overtook but i thought he might get a bit funny if the fumes had gone to his head. How can i check the rings. Head off right? How hard is this and whats it likely to cost. I dont have the cash to have it rebuilt. Is this something i could do myself? I have a workshop manual in the post whick i assume goes through it step by step. How long would it take and whats likely to need replacing?