Hopefully you have a 3 stage kit ?
Then you need a tank ( as said above )( pace ones are good)
Oil in plate or just a fitting ( pace for the plate / think auto for a fitting which is far cheaper)
A shed load of hose -10 more -12 ( depending on tanks location)
A lot of fittings ( think automotive is good for these and hose )
Remote filter head ( me lol)
Oil cooler (think auto / pay the money for a sebtrap )
Breather tank or filters for your oil tank ( pace or pro)
One way valve for your cam cover ( me again)
Bag load of clips ( think auto again )
Probably around 10 ltr of oil ( good oil and not to thin )
And maybe some other bits lol

Hope this is enough to get you going