I am doing quite a few things as stated in another thread I started but I need to know the following amount/ brand/ type to buy:

Brake flush: how much should I buy and which type?

Oil Change: 5w30 amsoil synthetic (how many quarts?)

Supercharger Oil Change: How much to buy?

Radiator Flush: how many gallons does it take to do a complete flush? (I will buy the fluid from Mini)

Also I am installing the 15% vmw pulley reduction kit. Is there another belt I should be replacing while I am in there? If so what kind of belt and where can I get it?

Thanks again for all of your help.

 

Judging from your post.
the first thing you should buy is a Bentley MINI service manual and read all the pertinent sections that you want to work on.
All fluid capacities are listed there including fastener torque values.
If you really want to flush the brakes, then i would suggest you buy a motive products pressure bleeder off Amazon plus 2 quarts of DOT 4 brake fluid and flush the brakes and clutch slave cylinder (manual trans only) in an hour or two dpending on what tools you own.
good luck and post here if you have problems.