You have to have 5 posts before you can post photos unless you put the photos on a photo hosting service and share links to the photos.with your post count you should be able to post pics. Must be image size blocking you. How big are the files?
Download the manual and read the manual to better educate yourself on the names of parts.
I kind of interpret your post as having taken the top cover or cam cover off the motor which reveals & releases the camshaft. Hopefully in doing so you backed off the adjustment screws of the rocker arms. To reassemble you need to use the ribber band trick or you will bend valves or crack valve guides.
Wrapping the cam and rocker arms in an oil rag or oil and put in a plastic bag will protect them. Do not mix up the rockers, they need to stay in the same position.
The oil leaks could be simply a valve/cam top cover gasket but you will want to replace it along with the pucks. Get the replacement pucks from Parts N More or CB750 Supply as they have the correct thickness for replacement head gaskets.
Post more so you can upload more pics. Share the history of where the motor came from and it's condition and mileage, etc.
Tells us where you are and maybe what bikes you have and what you plan to do with the motor...
Welcome to the forums.