I would thoroughly recommend coating all the bearing surfaces with Graphogen http://www.graphogen.co.uk/ to help with the initial start up but use cam lube ( https://rimmerbros.com/Item--i-RX1358?gclid=CjwKCAjw7-P1BRA2EiwAXoPWA3H5MkqGqisfrfPG0uTOZsUuIIkTkSJgSFbXWJKmt9KX_OGjXoSGCRoCcE8QAvD_BwE ) on the lobes and followers.
Get yourself a set of bottle brushes from frost restoration as well to get to those bits that hide the dirt! https://www.frost.co.uk/engine-brush-set/
You will need a decent Dial gauge and magnetic base for crank end float and cam timing (finding TDC with the head off, plenty on fleabay) along with a degree disc (I printed mine out and stuck it to cardboard)
If all else fails take a look at this series on you tube, he goes through a Triumph six rebuild step by step.
If nothing else, clean the engine out like its a hydraulic system, any trace of dirt or grit can wreck all your hard work............