If you have ran the sump dry you have how can I put this nicely naked the bearings on the bottom end (dried them out), you could try replacing them this might solve the ticking noise all you need to do is take the sump off unbolt the pistons from the crank shaft then replaced the bearings and put it back all back together just remember the right torq settings. This should resolve the knocking and its cheap for the bearings usually around £20.
Only problem is this will not resolve the original problem oil and coolant burning, afraid that could be three things, cracked head, oil seal in tappets or head gasket,which will need replacing, if you decide to replace the headgasket get the head skimmed and pressure tested usually costs around £40 and dont forget to buy a Haynes manual to make the job easier.