Starter issue and advice

[smallworld2]

Early yesterday morning I tried starting my 4.2 and there was no cranking, no clicking no nothing, as I was taking my wife to the hospital I managed to clutch start it, after driving for about 30-40 mins I parked it on a slope and tried to start with the key and it started fine. The battery was fully charged as headlights and all other electrics worked fine. I've ordered a cheap one on eBay to install until I get the original one sorted, any suggestions etc. appreciated

Thanks in advance