If you're doing the king pins, I'd do the rear wiper seals too. There's little point putting the old ones back on unless they're very recent. I'd also do the inner axle oil seal whilst it in bits. Takes 5 mins, costs a few quid and you won't have to do it again. Obviously, the CVs will want some grease in there and so will the swivels themselves. None of this is difficult to do, but I'd shy away from any garage that didn't understand swivel hubs and the correct adjustments.
One day someone will be brave enough to open the London Landcruiser Centre. I think there's enough work down there! But for now, the number of acknowledged cruiser specialists is very low across the UK never mind just London. Julian is the obvious choice but how quickly he could fit you in and how long it would be before you got it back, I couldn't say. It's a couple of hours work if it all goes well.
