Where is cheapest; insurance for Chocolate Labrador pup. In G.B?

Pix asked: Websites if you can, thanks! cheapest insurance gets 10 points!

how long should i keep hold of a lost dog i have found before keeping/rehoming?

mojojojo asked: we found the dog yesterday. i have done the following to try to locate the rightful owners:
walk the dog round the area it was found in for visibility, and ask passersby / dog walkers if they recognise the dog;
post a ‘found’ advert in local shops;
check at vets to see if it is microchipped;
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i’m thinking of getting a dog from a rescue centre, can i get health insurance for it if i havent?

sproutsaregreen asked: if i havent got its health history, or havent had it from puppyhood i have been told most pet insurance companies dont want to know.