Hey mate, i suggest the kit you can buy from bursons, its has everything you need except for (oil, coolant and the cam lock tools)
Waterpump may be leaking on the outside so you can replace if leaking, you dont need to have the timing case off to do the waterpump.
Waterpump may be leaking on the outside so you can replace if leaking, you dont need to have the timing case off to do the waterpump.