
I would make contact with the Labrador breed clubs. Expect to be asked to provide references re the care of your previous dog (say your vet and your old dogs breeder) as most reputable breeders would be wary of exporting to someone they didn't know, or wasn't known to someone they know well.
I would not advise having two puppies together. It really is double trouble, and will make training much harder.
As regards training, only you can really do this, as even a semi trained puppy will act as if it has never known any training if it thinks it can get away with it. You would need a mature adult, that has set habits if you wanted a trained dog, say one 2 years plus.
You can phone the KC on 0870 606 6750 or you can email them through their website. Just ask for the secretary contact details of labrador clubs. You will find the KC website if you do a Google search on kennel Club.