The valve stems look good and are within allowed tolerance but unfortunately I have no way to measure the valve guide bore so I cannot say for sure if the guides are worn or not. However, the valves can be wiggled a small amount in the bore so it is possible they are a little worn.
Are K-Lines still available for valve guides and if so, would you know of anyone here in Australia who can fit them?
Are K-Lines still available for valve guides and if so, would you know of anyone here in Australia who can fit them?